Repository: pypa/pipenv

Issue:
question on venv name in prompt
<details><summary>$ pipenv --support</summary>

Pipenv version: `'2018.10.9'`

Pipenv location: `'/home/kubuntu/.local/lib/python3.7/site-packages/pipenv'`

Python location: `'/usr/bin/python3.7'`

Python installations found:

  - `3.7.0`: `/home/kubuntu/.local/share/virtualenvs/simple-v0MobB9A/bin/python3.7m`
  - `3.7.0`: `/usr/bin/python3.7m`
  - `3.7.0`: `/usr/bin/python3.7`
  - `3.6.6`: `/usr/bin/python3.6`
  - `3.6.6`: `/usr/bin/python3.6m`
  - `2.7.15rc1`: `/usr/bin/python2.7`

PEP 508 Information:

```
{'implementation_name': 'cpython',
 'implementation_version': '3.7.0',
 'os_name': 'posix',
 'platform_machine': 'x86_64',
 'platform_python_implementation': 'CPython',
 'platform_release': '4.15.0-36-generic',
 'platform_system': 'Linux',
 'platform_version': '#39-Ubuntu SMP Mon Sep 24 16:19:09 UTC 2018',
 'python_full_version': '3.7.0',
 'python_version': '3.7',
 'sys_platform': 'linux'}
```

System environment variables:

  - `COLORFGBG`
  - `COLORTERM`
  - `DBUS_SESSION_BUS_ADDRESS`
  - `DEFAULTS_PATH`
  - `DESKTOP_SESSION`
  - `DISPLAY`
  - `GPG_AGENT_INFO`
  - `GS_LIB`
  - `GTK_MODULES`
  - `HOME`
  - `KDE_FULL_SESSION`
  - `KDE_SESSION_UID`
  - `KDE_SESSION_VERSION`
  - `KONSOLE_DBUS_SERVICE`
  - `KONSOLE_DBUS_SESSION`
  - `KONSOLE_PROFILE_NAME`
  - `LANG`
  - `LANGUAGE`
  - `LC_ADDRESS`
  - `LC_IDENTIFICATION`
  - `LC_MEASUREMENT`
  - `LC_MONETARY`
  - `LC_NAME`
  - `LC_NUMERIC`
  - `LC_PAPER`
  - `LC_TELEPHONE`
  - `LC_TIME`
  - `LOGNAME`
  - `MANDATORY_PATH`
  - `OLDPWD`
  - `PAM_KWALLET5_LOGIN`
  - `PAM_KWALLET_LOGIN`
  - `PATH`
  - `PROFILEHOME`
  - `PWD`
  - `QT_ACCESSIBILITY`
  - `QT_AUTO_SCREEN_SCALE_FACTOR`
  - `SESSION_MANAGER`
  - `SHELL`
  - `SHELL_SESSION_ID`
  - `SHLVL`
  - `SSH_AGENT_PID`
  - `SSH_AUTH_SOCK`
  - `TERM`
  - `USER`
  - `WINDOWID`
  - `XAUTHORITY`
  - `XCURSOR_THEME`
  - `XDG_CONFIG_DIRS`
  - `XDG_CURRENT_DESKTOP`
  - `XDG_DATA_DIRS`
  - `XDG_RUNTIME_DIR`
  - `XDG_SEAT`
  - `XDG_SEAT_PATH`
  - `XDG_SESSION_CLASS`
  - `XDG_SESSION_DESKTOP`
  - `XDG_SESSION_ID`
  - `XDG_SESSION_PATH`
  - `XDG_SESSION_TYPE`
  - `XDG_VTNR`
  - `_`
  - `ZSH`
  - `PAGER`
  - `LESS`
  - `LC_CTYPE`
  - `LSCOLORS`
  - `LS_COLORS`
  - `CONDA_ACTIVATE_SCRIPT`
  - `CONDA_SHLVL`
  - `EDITOR`
  - `PYTHONDONTWRITEBYTECODE`
  - `PIP_SHIMS_BASE_MODULE`
  - `PIP_PYTHON_PATH`
  - `PIPENV_ACTIVE`
  - `VIRTUAL_ENV`
  - `PS1`

Pipenv–specific environment variables:

 - `PIPENV_ACTIVE`: `1`

Debug–specific environment variables:

  - `PATH`: `/home/kubuntu/.local/share/virtualenvs/simple-v0MobB9A/bin:/home/kubuntu/.local/bin:/home/kubuntu/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games`
  - `SHELL`: `/usr/bin/zsh`
  - `EDITOR`: `nano`
  - `LANG`: `en_US.UTF-8`
  - `PWD`: `/home/kubuntu/work/playground/django/simple`
  - `VIRTUAL_ENV`: `/home/kubuntu/.local/share/virtualenvs/simple-v0MobB9A`


---------------------------

Contents of `Pipfile` ('/home/shared/work/playground/django/simple/Pipfile'):

```toml
[[source]]
url = "https://pypi.org/simple"
verify_ssl = true
name = "pypi"

[dev-packages]
ipython = "*"
notebook = "*"

[packages]
django = "*"
requests = "*"

[requires]
python_version = "3.7"

```


Contents of `Pipfile.lock` ('/home/shared/work/playground/django/simple/Pipfile.lock'):

```json
{
    "_meta": {
        "hash": {
            "sha256": "1bc1c96dd8ace63102ff7566557b10139655f607e020a033dc16920c170c0b7a"
        },
        "pipfile-spec": 6,
        "requires": {
            "python_version": "3.7"
        },
        "sources": [
            {
                "name": "pypi",
                "url": "https://pypi.org/simple",
                "verify_ssl": true
            }
        ]
    },
    "default": {
        "certifi": {
            "hashes": [
                "sha256:376690d6f16d32f9d1fe8932551d80b23e9d393a8578c5633a2ed39a64861638",
                "sha256:456048c7e371c089d0a77a5212fb37a2c2dce1e24146e3b7e0261736aaeaa22a"
            ],
            "version": "==2018.8.24"
        },
        "chardet": {
            "hashes": [
                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
            ],
            "version": "==3.0.4"
        },
        "django": {
            "hashes": [
                "sha256:acdcc1f61fdb0a0c82a1d3bf1879a414e7732ea894a7632af7f6d66ec7ab5bb3",
                "sha256:efbcad7ebb47daafbcead109b38a5bd519a3c3cd92c6ed0f691ff97fcdd16b45"
            ],
            "index": "pypi",
            "version": "==2.1.2"
        },
        "idna": {
            "hashes": [
                "sha256:156a6814fb5ac1fc6850fb002e0852d56c0c8d2531923a51032d1b70760e186e",
                "sha256:684a38a6f903c1d71d6d5fac066b58d7768af4de2b832e426ec79c30daa94a16"
            ],
            "version": "==2.7"
        },
        "pytz": {
            "hashes": [
                "sha256:a061aa0a9e06881eb8b3b2b43f05b9439d6583c206d0a6c340ff72a7b6669053",
                "sha256:ffb9ef1de172603304d9d2819af6f5ece76f2e85ec10692a524dd876e72bf277"
            ],
            "version": "==2018.5"
        },
        "requests": {
            "hashes": [
                "sha256:63b52e3c866428a224f97cab011de738c36aec0185aa91cfacd418b5d58911d1",
                "sha256:ec22d826a36ed72a7358ff3fe56cbd4ba69dd7a6718ffd450ff0e9df7a47ce6a"
            ],
            "index": "pypi",
            "version": "==2.19.1"
        },
        "urllib3": {
            "hashes": [
                "sha256:a68ac5e15e76e7e5dd2b8f94007233e01effe3e50e8daddf69acfd81cb686baf",
                "sha256:b5725a0bd4ba422ab0e66e89e030c806576753ea3ee08554382c14e685d117b5"
            ],
            "version": "==1.23"
        }
    },
    "develop": {
        "backcall": {
            "hashes": [
                "sha256:38ecd85be2c1e78f77fd91700c76e14667dc21e2713b63876c0eb901196e01e4",
                "sha256:bbbf4b1e5cd2bdb08f915895b51081c041bac22394fdfcfdfbe9f14b77c08bf2"
            ],
            "version": "==0.1.0"
        },
        "bleach": {
            "hashes": [
                "sha256:c39d25d9ada62009853b0281efdc35a792db8cdee89465433e6d0aaaf5defc3f",
                "sha256:f680cc08e2eea821f3173b875f68763960006f1e764c92b5d2b8354af3a47468"
            ],
            "version": "==3.0.1"
        },
        "decorator": {
            "hashes": [
                "sha256:2c51dff8ef3c447388fe5e4453d24a2bf128d3a4c32af3fabef1f01c6851ab82",
                "sha256:c39efa13fbdeb4506c476c9b3babf6a718da943dab7811c206005a4a956c080c"
            ],
            "version": "==4.3.0"
        },
        "defusedxml": {
            "hashes": [
                "sha256:24d7f2f94f7f3cb6061acb215685e5125fbcdc40a857eff9de22518820b0a4f4",
                "sha256:702a91ade2968a82beb0db1e0766a6a273f33d4616a6ce8cde475d8e09853b20"
            ],
            "version": "==0.5.0"
        },
        "entrypoints": {
            "hashes": [
                "sha256:10ad569bb245e7e2ba425285b9fa3e8178a0dc92fc53b1e1c553805e15a8825b",
                "sha256:d2d587dde06f99545fb13a383d2cd336a8ff1f359c5839ce3a64c917d10c029f"
            ],
            "version": "==0.2.3"
        },
        "ipykernel": {
            "hashes": [
                "sha256:0aeb7ec277ac42cc2b59ae3d08b10909b2ec161dc6908096210527162b53675d",
                "sha256:0fc0bf97920d454102168ec2008620066878848fcfca06c22b669696212e292f"
            ],
            "version": "==5.1.0"
        },
        "ipython": {
            "hashes": [
                "sha256:47b17ea874454a5c2eacc2732b04a750d260b01ba479323155ac8a39031f5535",
                "sha256:9fed506c3772c875a3048bc134a25e6f5e997b1569b2636f6a5d891f34cbfd46"
            ],
            "index": "pypi",
            "version": "==7.0.1"
        },
        "ipython-genutils": {
            "hashes": [
                "sha256:72dd37233799e619666c9f639a9da83c34013a73e8bbc79a7a6348d93c61fab8",
                "sha256:eb2e116e75ecef9d4d228fdc66af54269afa26ab4463042e33785b887c628ba8"
            ],
            "version": "==0.2.0"
        },
        "jedi": {
            "hashes": [
                "sha256:0191c447165f798e6a730285f2eee783fff81b0d3df261945ecb80983b5c3ca7",
                "sha256:b7493f73a2febe0dc33d51c99b474547f7f6c0b2c8fb2b21f453eef204c12148"
            ],
            "version": "==0.13.1"
        },
        "jinja2": {
            "hashes": [
                "sha256:74c935a1b8bb9a3947c50a54766a969d4846290e1e788ea44c1392163723c3bd",
                "sha256:f84be1bb0040caca4cea721fcbbbbd61f9be9464ca236387158b0feea01914a4"
            ],
            "version": "==2.10"
        },
        "jsonschema": {
            "hashes": [
                "sha256:000e68abd33c972a5248544925a0cae7d1125f9bf6c58280d37546b946769a08",
                "sha256:6ff5f3180870836cae40f06fa10419f557208175f13ad7bc26caa77beb1f6e02"
            ],
            "version": "==2.6.0"
        },
        "jupyter-client": {
            "hashes": [
                "sha256:27befcf0446b01e29853014d6a902dd101ad7d7f94e2252b1adca17c3466b761",
                "sha256:59e6d791e22a8002ad0e80b78c6fd6deecab4f9e1b1aa1a22f4213de271b29ea"
            ],
            "version": "==5.2.3"
        },
        "jupyter-core": {
            "hashes": [
                "sha256:927d713ffa616ea11972534411544589976b2493fc7e09ad946e010aa7eb9970",
                "sha256:ba70754aa680300306c699790128f6fbd8c306ee5927976cbe48adacf240c0b7"
            ],
            "version": "==4.4.0"
        },
        "markupsafe": {
            "hashes": [
                "sha256:a6be69091dac236ea9c6bc7d012beab42010fa914c459791d627dad4910eb665"
            ],
            "version": "==1.0"
        },
        "mistune": {
            "hashes": [
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                "sha256:bc10c33bfdcaa4e749b779f62f60d6e12f8215c46a292d05e486b869ae306619"
            ],
            "version": "==0.8.3"
        },
        "nbconvert": {
            "hashes": [
                "sha256:08d21cf4203fabafd0d09bbd63f06131b411db8ebeede34b0fd4be4548351779",
                "sha256:a8a2749f972592aa9250db975304af6b7337f32337e523a2c995cc9e12c07807"
            ],
            "version": "==5.4.0"
        },
        "nbformat": {
            "hashes": [
                "sha256:b9a0dbdbd45bb034f4f8893cafd6f652ea08c8c1674ba83f2dc55d3955743b0b",
                "sha256:f7494ef0df60766b7cabe0a3651556345a963b74dbc16bc7c18479041170d402"
            ],
            "version": "==4.4.0"
        },
        "notebook": {
            "hashes": [
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                "sha256:ddb713d15a3205d7d3beab11f7fa9e3b10dbe0a2fff034a7db22ec8a2bc47a8b"
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            "index": "pypi",
            "version": "==5.7.0"
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        "pandocfilters": {
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            "version": "==1.4.2"
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        "parso": {
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            "version": "==0.3.1"
        },
        "pexpect": {
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            "markers": "sys_platform != 'win32'",
            "version": "==4.6.0"
        },
        "pickleshare": {
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                "sha256:9649af414d74d4df115d5d718f82acb59c9d418196b7b4290ed47a12ce62df56"
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            "version": "==0.7.5"
        },
        "prometheus-client": {
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        "prompt-toolkit": {
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        "ptyprocess": {
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                "sha256:d7cc528d76e76342423ca640335bd3633420dc1366f258cb31d05e865ef5ca1f"
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            "version": "==0.6.0"
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        "pygments": {
            "hashes": [
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                "sha256:dbae1046def0efb574852fab9e90209b23f556367b5a320c0bcb871c77c3e8cc"
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        "python-dateutil": {
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                "sha256:a72b82ac1910f2cf61a49139f4974f994984475f771b0faa730839607eeedddf",
                "sha256:ab136ac51027e7c484c53138a0fab4a8a51e80d05162eb7b1585583bcfdbad27",
                "sha256:c095b224300bcac61e6c445e27f9046981b1ac20d891b2f1714da89d34c637c8",
                "sha256:c5cc52d16c06dc2521340d69adda78a8e1031705924e103c0eb8fc8af861d810",
                "sha256:d612e9833a89e8177f8c1dc68d7b4ff98d3186cd331acd616b01bbdab67d3a7b",
                "sha256:e828376a23c66c6fe90dcea24b4b72cd774f555a6ee94081670872918df87a19",
                "sha256:e9767c7ab2eb552796440168d5c6e23a99ecaade08dda16266d43ad461730192",
                "sha256:ebf8b800d42d217e4710d1582b0c8bff20cdcb4faad7c7213e52644034300924"
            ],
            "version": "==17.1.2"
        },
        "send2trash": {
            "hashes": [
                "sha256:60001cc07d707fe247c94f74ca6ac0d3255aabcb930529690897ca2a39db28b2",
                "sha256:f1691922577b6fa12821234aeb57599d887c4900b9ca537948d2dac34aea888b"
            ],
            "version": "==1.5.0"
        },
        "simplegeneric": {
            "hashes": [
                "sha256:dc972e06094b9af5b855b3df4a646395e43d1c9d0d39ed345b7393560d0b9173"
            ],
            "version": "==0.8.1"
        },
        "six": {
            "hashes": [
                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
            ],
            "version": "==1.11.0"
        },
        "terminado": {
            "hashes": [
                "sha256:55abf9ade563b8f9be1f34e4233c7b7bde726059947a593322e8a553cc4c067a",
                "sha256:65011551baff97f5414c67018e908110693143cfbaeb16831b743fe7cad8b927"
            ],
            "version": "==0.8.1"
        },
        "testpath": {
            "hashes": [
                "sha256:46c89ebb683f473ffe2aab0ed9f12581d4d078308a3cb3765d79c6b2317b0109",
                "sha256:b694b3d9288dbd81685c5d2e7140b81365d46c29f5db4bc659de5aa6b98780f8"
            ],
            "version": "==0.4.2"
        },
        "tornado": {
            "hashes": [
                "sha256:0662d28b1ca9f67108c7e3b77afabfb9c7e87bde174fbda78186ecedc2499a9d",
                "sha256:4e5158d97583502a7e2739951553cbd88a72076f152b4b11b64b9a10c4c49409",
                "sha256:732e836008c708de2e89a31cb2fa6c0e5a70cb60492bee6f1ea1047500feaf7f",
                "sha256:8154ec22c450df4e06b35f131adc4f2f3a12ec85981a203301d310abf580500f",
                "sha256:8e9d728c4579682e837c92fdd98036bd5cdefa1da2aaf6acf26947e6dd0c01c5",
                "sha256:d4b3e5329f572f055b587efc57d29bd051589fb5a43ec8898c77a47ec2fa2bbb",
                "sha256:e5f2585afccbff22390cddac29849df463b252b711aa2ce7c5f3f342a5b3b444"
            ],
            "version": "==5.1.1"
        },
        "traitlets": {
            "hashes": [
                "sha256:9c4bd2d267b7153df9152698efb1050a5d84982d3384a37b2c1f7723ba3e7835",
                "sha256:c6cb5e6f57c5a9bdaa40fa71ce7b4af30298fbab9ece9815b5d995ab6217c7d9"
            ],
            "version": "==4.3.2"
        },
        "wcwidth": {
            "hashes": [
                "sha256:3df37372226d6e63e1b1e1eda15c594bca98a22d33a23832a90998faa96bc65e",
                "sha256:f4ebe71925af7b40a864553f761ed559b43544f8f71746c2d756c7fe788ade7c"
            ],
            "version": "==0.1.7"
        },
        "webencodings": {
            "hashes": [
                "sha256:a0af1213f3c2226497a97e2b3aa01a7e4bee4f403f95be16fc9acd2947514a78",
                "sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923"
            ],
            "version": "==0.5.1"
        }
    }
}

```
</details>

----------------

This is a general question. I know that venv names are made out of project name (folder name) and ``slug value``. For example for me here it is ``simple-v0MobB9A``. 

With venvs created with ``pipenv==2018.5.18`` doing ``pipenv shell`` was transforming my prompt into
(note the space after venv name)
```
(simple-v0MobB9A) machine42 ➜  simple git:(master) ✗
```


Now after updating to ``pipenv==2018.10.9`` I am getting
```
(simple)machine42 ➜  simple git:(master) ✗ 
```

It is awesome that the ``slug value`` is skipped, however, the missing space between ``(simple)`` and ``machine42`` is bothering me. It's a minor issue (don't know if actual issue or bug?) but I find it aesthetically unpleasant and have no idea where it comes from.
question on venv name in prompt
<details><summary>$ pipenv --support</summary>

Pipenv version: `'2018.10.9'`

Pipenv location: `'/home/kubuntu/.local/lib/python3.7/site-packages/pipenv'`

Python location: `'/usr/bin/python3.7'`

Python installations found:

  - `3.7.0`: `/home/kubuntu/.local/share/virtualenvs/simple-v0MobB9A/bin/python3.7m`
  - `3.7.0`: `/usr/bin/python3.7m`
  - `3.7.0`: `/usr/bin/python3.7`
  - `3.6.6`: `/usr/bin/python3.6`
  - `3.6.6`: `/usr/bin/python3.6m`
  - `2.7.15rc1`: `/usr/bin/python2.7`

PEP 508 Information:

```
{'implementation_name': 'cpython',
 'implementation_version': '3.7.0',
 'os_name': 'posix',
 'platform_machine': 'x86_64',
 'platform_python_implementation': 'CPython',
 'platform_release': '4.15.0-36-generic',
 'platform_system': 'Linux',
 'platform_version': '#39-Ubuntu SMP Mon Sep 24 16:19:09 UTC 2018',
 'python_full_version': '3.7.0',
 'python_version': '3.7',
 'sys_platform': 'linux'}
```

System environment variables:

  - `COLORFGBG`
  - `COLORTERM`
  - `DBUS_SESSION_BUS_ADDRESS`
  - `DEFAULTS_PATH`
  - `DESKTOP_SESSION`
  - `DISPLAY`
  - `GPG_AGENT_INFO`
  - `GS_LIB`
  - `GTK_MODULES`
  - `HOME`
  - `KDE_FULL_SESSION`
  - `KDE_SESSION_UID`
  - `KDE_SESSION_VERSION`
  - `KONSOLE_DBUS_SERVICE`
  - `KONSOLE_DBUS_SESSION`
  - `KONSOLE_PROFILE_NAME`
  - `LANG`
  - `LANGUAGE`
  - `LC_ADDRESS`
  - `LC_IDENTIFICATION`
  - `LC_MEASUREMENT`
  - `LC_MONETARY`
  - `LC_NAME`
  - `LC_NUMERIC`
  - `LC_PAPER`
  - `LC_TELEPHONE`
  - `LC_TIME`
  - `LOGNAME`
  - `MANDATORY_PATH`
  - `OLDPWD`
  - `PAM_KWALLET5_LOGIN`
  - `PAM_KWALLET_LOGIN`
  - `PATH`
  - `PROFILEHOME`
  - `PWD`
  - `QT_ACCESSIBILITY`
  - `QT_AUTO_SCREEN_SCALE_FACTOR`
  - `SESSION_MANAGER`
  - `SHELL`
  - `SHELL_SESSION_ID`
  - `SHLVL`
  - `SSH_AGENT_PID`
  - `SSH_AUTH_SOCK`
  - `TERM`
  - `USER`
  - `WINDOWID`
  - `XAUTHORITY`
  - `XCURSOR_THEME`
  - `XDG_CONFIG_DIRS`
  - `XDG_CURRENT_DESKTOP`
  - `XDG_DATA_DIRS`
  - `XDG_RUNTIME_DIR`
  - `XDG_SEAT`
  - `XDG_SEAT_PATH`
  - `XDG_SESSION_CLASS`
  - `XDG_SESSION_DESKTOP`
  - `XDG_SESSION_ID`
  - `XDG_SESSION_PATH`
  - `XDG_SESSION_TYPE`
  - `XDG_VTNR`
  - `_`
  - `ZSH`
  - `PAGER`
  - `LESS`
  - `LC_CTYPE`
  - `LSCOLORS`
  - `LS_COLORS`
  - `CONDA_ACTIVATE_SCRIPT`
  - `CONDA_SHLVL`
  - `EDITOR`
  - `PYTHONDONTWRITEBYTECODE`
  - `PIP_SHIMS_BASE_MODULE`
  - `PIP_PYTHON_PATH`
  - `PIPENV_ACTIVE`
  - `VIRTUAL_ENV`
  - `PS1`

Pipenv–specific environment variables:

 - `PIPENV_ACTIVE`: `1`

Debug–specific environment variables:

  - `PATH`: `/home/kubuntu/.local/share/virtualenvs/simple-v0MobB9A/bin:/home/kubuntu/.local/bin:/home/kubuntu/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games`
  - `SHELL`: `/usr/bin/zsh`
  - `EDITOR`: `nano`
  - `LANG`: `en_US.UTF-8`
  - `PWD`: `/home/kubuntu/work/playground/django/simple`
  - `VIRTUAL_ENV`: `/home/kubuntu/.local/share/virtualenvs/simple-v0MobB9A`


---------------------------

Contents of `Pipfile` ('/home/shared/work/playground/django/simple/Pipfile'):

```toml
[[source]]
url = "https://pypi.org/simple"
verify_ssl = true
name = "pypi"

[dev-packages]
ipython = "*"
notebook = "*"

[packages]
django = "*"
requests = "*"

[requires]
python_version = "3.7"

```


Contents of `Pipfile.lock` ('/home/shared/work/playground/django/simple/Pipfile.lock'):

```json
{
    "_meta": {
        "hash": {
            "sha256": "1bc1c96dd8ace63102ff7566557b10139655f607e020a033dc16920c170c0b7a"
        },
        "pipfile-spec": 6,
        "requires": {
            "python_version": "3.7"
        },
        "sources": [
            {
                "name": "pypi",
                "url": "https://pypi.org/simple",
                "verify_ssl": true
            }
        ]
    },
    "default": {
        "certifi": {
            "hashes": [
                "sha256:376690d6f16d32f9d1fe8932551d80b23e9d393a8578c5633a2ed39a64861638",
                "sha256:456048c7e371c089d0a77a5212fb37a2c2dce1e24146e3b7e0261736aaeaa22a"
            ],
            "version": "==2018.8.24"
        },
        "chardet": {
            "hashes": [
                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
            ],
            "version": "==3.0.4"
        },
        "django": {
            "hashes": [
                "sha256:acdcc1f61fdb0a0c82a1d3bf1879a414e7732ea894a7632af7f6d66ec7ab5bb3",
                "sha256:efbcad7ebb47daafbcead109b38a5bd519a3c3cd92c6ed0f691ff97fcdd16b45"
            ],
            "index": "pypi",
            "version": "==2.1.2"
        },
        "idna": {
            "hashes": [
                "sha256:156a6814fb5ac1fc6850fb002e0852d56c0c8d2531923a51032d1b70760e186e",
                "sha256:684a38a6f903c1d71d6d5fac066b58d7768af4de2b832e426ec79c30daa94a16"
            ],
            "version": "==2.7"
        },
        "pytz": {
            "hashes": [
                "sha256:a061aa0a9e06881eb8b3b2b43f05b9439d6583c206d0a6c340ff72a7b6669053",
                "sha256:ffb9ef1de172603304d9d2819af6f5ece76f2e85ec10692a524dd876e72bf277"
            ],
            "version": "==2018.5"
        },
        "requests": {
            "hashes": [
                "sha256:63b52e3c866428a224f97cab011de738c36aec0185aa91cfacd418b5d58911d1",
                "sha256:ec22d826a36ed72a7358ff3fe56cbd4ba69dd7a6718ffd450ff0e9df7a47ce6a"
            ],
            "index": "pypi",
            "version": "==2.19.1"
        },
        "urllib3": {
            "hashes": [
                "sha256:a68ac5e15e76e7e5dd2b8f94007233e01effe3e50e8daddf69acfd81cb686baf",
                "sha256:b5725a0bd4ba422ab0e66e89e030c806576753ea3ee08554382c14e685d117b5"
            ],
            "version": "==1.23"
        }
    },
    "develop": {
        "backcall": {
            "hashes": [
                "sha256:38ecd85be2c1e78f77fd91700c76e14667dc21e2713b63876c0eb901196e01e4",
                "sha256:bbbf4b1e5cd2bdb08f915895b51081c041bac22394fdfcfdfbe9f14b77c08bf2"
            ],
            "version": "==0.1.0"
        },
        "bleach": {
            "hashes": [
                "sha256:c39d25d9ada62009853b0281efdc35a792db8cdee89465433e6d0aaaf5defc3f",
                "sha256:f680cc08e2eea821f3173b875f68763960006f1e764c92b5d2b8354af3a47468"
            ],
            "version": "==3.0.1"
        },
        "decorator": {
            "hashes": [
                "sha256:2c51dff8ef3c447388fe5e4453d24a2bf128d3a4c32af3fabef1f01c6851ab82",
                "sha256:c39efa13fbdeb4506c476c9b3babf6a718da943dab7811c206005a4a956c080c"
            ],
            "version": "==4.3.0"
        },
        "defusedxml": {
            "hashes": [
                "sha256:24d7f2f94f7f3cb6061acb215685e5125fbcdc40a857eff9de22518820b0a4f4",
                "sha256:702a91ade2968a82beb0db1e0766a6a273f33d4616a6ce8cde475d8e09853b20"
            ],
            "version": "==0.5.0"
        },
        "entrypoints": {
            "hashes": [
                "sha256:10ad569bb245e7e2ba425285b9fa3e8178a0dc92fc53b1e1c553805e15a8825b",
                "sha256:d2d587dde06f99545fb13a383d2cd336a8ff1f359c5839ce3a64c917d10c029f"
            ],
            "version": "==0.2.3"
        },
        "ipykernel": {
            "hashes": [
                "sha256:0aeb7ec277ac42cc2b59ae3d08b10909b2ec161dc6908096210527162b53675d",
                "sha256:0fc0bf97920d454102168ec2008620066878848fcfca06c22b669696212e292f"
            ],
            "version": "==5.1.0"
        },
        "ipython": {
            "hashes": [
                "sha256:47b17ea874454a5c2eacc2732b04a750d260b01ba479323155ac8a39031f5535",
                "sha256:9fed506c3772c875a3048bc134a25e6f5e997b1569b2636f6a5d891f34cbfd46"
            ],
            "index": "pypi",
            "version": "==7.0.1"
        },
        "ipython-genutils": {
            "hashes": [
                "sha256:72dd37233799e619666c9f639a9da83c34013a73e8bbc79a7a6348d93c61fab8",
                "sha256:eb2e116e75ecef9d4d228fdc66af54269afa26ab4463042e33785b887c628ba8"
            ],
            "version": "==0.2.0"
        },
        "jedi": {
            "hashes": [
                "sha256:0191c447165f798e6a730285f2eee783fff81b0d3df261945ecb80983b5c3ca7",
                "sha256:b7493f73a2febe0dc33d51c99b474547f7f6c0b2c8fb2b21f453eef204c12148"
            ],
            "version": "==0.13.1"
        },
        "jinja2": {
            "hashes": [
                "sha256:74c935a1b8bb9a3947c50a54766a969d4846290e1e788ea44c1392163723c3bd",
                "sha256:f84be1bb0040caca4cea721fcbbbbd61f9be9464ca236387158b0feea01914a4"
            ],
            "version": "==2.10"
        },
        "jsonschema": {
            "hashes": [
                "sha256:000e68abd33c972a5248544925a0cae7d1125f9bf6c58280d37546b946769a08",
                "sha256:6ff5f3180870836cae40f06fa10419f557208175f13ad7bc26caa77beb1f6e02"
            ],
            "version": "==2.6.0"
        },
        "jupyter-client": {
            "hashes": [
                "sha256:27befcf0446b01e29853014d6a902dd101ad7d7f94e2252b1adca17c3466b761",
                "sha256:59e6d791e22a8002ad0e80b78c6fd6deecab4f9e1b1aa1a22f4213de271b29ea"
            ],
            "version": "==5.2.3"
        },
        "jupyter-core": {
            "hashes": [
                "sha256:927d713ffa616ea11972534411544589976b2493fc7e09ad946e010aa7eb9970",
                "sha256:ba70754aa680300306c699790128f6fbd8c306ee5927976cbe48adacf240c0b7"
            ],
            "version": "==4.4.0"
        },
        "markupsafe": {
            "hashes": [
                "sha256:a6be69091dac236ea9c6bc7d012beab42010fa914c459791d627dad4910eb665"
            ],
            "version": "==1.0"
        },
        "mistune": {
            "hashes": [
                "sha256:b4c512ce2fc99e5a62eb95a4aba4b73e5f90264115c40b70a21e1f7d4e0eac91",
                "sha256:bc10c33bfdcaa4e749b779f62f60d6e12f8215c46a292d05e486b869ae306619"
            ],
            "version": "==0.8.3"
        },
        "nbconvert": {
            "hashes": [
                "sha256:08d21cf4203fabafd0d09bbd63f06131b411db8ebeede34b0fd4be4548351779",
                "sha256:a8a2749f972592aa9250db975304af6b7337f32337e523a2c995cc9e12c07807"
            ],
            "version": "==5.4.0"
        },
        "nbformat": {
            "hashes": [
                "sha256:b9a0dbdbd45bb034f4f8893cafd6f652ea08c8c1674ba83f2dc55d3955743b0b",
                "sha256:f7494ef0df60766b7cabe0a3651556345a963b74dbc16bc7c18479041170d402"
            ],
            "version": "==4.4.0"
        },
        "notebook": {
            "hashes": [
                "sha256:b85e4de3d54cf4f14fe1d0515a980ccb49ddd4cdd21250cc0d4fb6374d50b1a7",
                "sha256:ddb713d15a3205d7d3beab11f7fa9e3b10dbe0a2fff034a7db22ec8a2bc47a8b"
            ],
            "index": "pypi",
            "version": "==5.7.0"
        },
        "pandocfilters": {
            "hashes": [
                "sha256:b3dd70e169bb5449e6bc6ff96aea89c5eea8c5f6ab5e207fc2f521a2cf4a0da9"
            ],
            "version": "==1.4.2"
        },
        "parso": {
            "hashes": [
                "sha256:35704a43a3c113cce4de228ddb39aab374b8004f4f2407d070b6a2ca784ce8a2",
                "sha256:895c63e93b94ac1e1690f5fdd40b65f07c8171e3e53cbd7793b5b96c0e0a7f24"
            ],
            "version": "==0.3.1"
        },
        "pexpect": {
            "hashes": [
                "sha256:2a8e88259839571d1251d278476f3eec5db26deb73a70be5ed5dc5435e418aba",
                "sha256:3fbd41d4caf27fa4a377bfd16fef87271099463e6fa73e92a52f92dfee5d425b"
            ],
            "markers": "sys_platform != 'win32'",
            "version": "==4.6.0"
        },
        "pickleshare": {
            "hashes": [
                "sha256:87683d47965c1da65cdacaf31c8441d12b8044cdec9aca500cd78fc2c683afca",
                "sha256:9649af414d74d4df115d5d718f82acb59c9d418196b7b4290ed47a12ce62df56"
            ],
            "version": "==0.7.5"
        },
        "prometheus-client": {
            "hashes": [
                "sha256:2c0ddba8b9dc5e06de7578a7b25e4becafd6880e6d727bc0a73f8d826c1b0112"
            ],
            "version": "==0.4.1"
        },
        "prompt-toolkit": {
            "hashes": [
                "sha256:5eff0c9fd652384ecfe730bbcdf3658868725c6928fbf608d9338834d7a974b6",
                "sha256:81da9ecf6ca6806a549697529af8ec3ac5b739c13ac14607218e650db1b53131",
                "sha256:c67c1c264d8a0d9e1070e9272bacee00f76c81daab7bc4bf09ff991bd1e224a7"
            ],
            "version": "==2.0.5"
        },
        "ptyprocess": {
            "hashes": [
                "sha256:923f299cc5ad920c68f2bc0bc98b75b9f838b93b599941a6b63ddbc2476394c0",
                "sha256:d7cc528d76e76342423ca640335bd3633420dc1366f258cb31d05e865ef5ca1f"
            ],
            "version": "==0.6.0"
        },
        "pygments": {
            "hashes": [
                "sha256:78f3f434bcc5d6ee09020f92ba487f95ba50f1e3ef83ae96b9d5ffa1bab25c5d",
                "sha256:dbae1046def0efb574852fab9e90209b23f556367b5a320c0bcb871c77c3e8cc"
            ],
            "version": "==2.2.0"
        },
        "python-dateutil": {
            "hashes": [
                "sha256:1adb80e7a782c12e52ef9a8182bebeb73f1d7e24e374397af06fb4956c8dc5c0",
                "sha256:e27001de32f627c22380a688bcc43ce83504a7bc5da472209b4c70f02829f0b8"
            ],
            "version": "==2.7.3"
        },
        "pyzmq": {
            "hashes": [
                "sha256:25a0715c8f69cf72f67cfe5a68a3f3ed391c67c063d2257bec0fe7fc2c7f08f8",
                "sha256:2bab63759632c6b9e0d5bf19cc63c3b01df267d660e0abcf230cf0afaa966349",
                "sha256:30ab49d99b24bf0908ebe1cdfa421720bfab6f93174e4883075b7ff38cc555ba",
                "sha256:32c7ca9fc547a91e3c26fc6080b6982e46e79819e706eb414dd78f635a65d946",
                "sha256:41219ae72b3cc86d97557fe5b1ef5d1adc1057292ec597b50050874a970a39cf",
                "sha256:4b8c48a9a13cea8f1f16622f9bd46127108af14cd26150461e3eab71e0de3e46",
                "sha256:55724997b4a929c0d01b43c95051318e26ddbae23565018e138ae2dc60187e59",
                "sha256:65f0a4afae59d4fc0aad54a917ab599162613a761b760ba167d66cc646ac3786",
                "sha256:6f88591a8b246f5c285ee6ce5c1bf4f6bd8464b7f090b1333a446b6240a68d40",
                "sha256:75022a4c60dcd8765bb9ca32f6de75a0ec83b0d96e0309dc479f4c7b21f26cb7",
                "sha256:76ea493bfab18dcb090d825f3662b5612e2def73dffc196d51a5194b0294a81d",
                "sha256:7b60c045b80709e4e3c085bab9b691e71761b44c2b42dbb047b8b498e7bc16b3",
                "sha256:8e6af2f736734aef8ed6f278f9f552ec7f37b1a6b98e59b887484a840757f67d",
                "sha256:9ac2298e486524331e26390eac14e4627effd3f8e001d4266ed9d8f1d2d31cce",
                "sha256:9ba650f493a9bc1f24feca1d90fce0e5dd41088a252ac9840131dfbdbf3815ca",
                "sha256:a02a4a385e394e46012dc83d2e8fd6523f039bb52997c1c34a2e0dd49ed839c1",
                "sha256:a3ceee84114d9f5711fa0f4db9c652af0e4636c89eabc9b7f03a3882569dd1ed",
                "sha256:a72b82ac1910f2cf61a49139f4974f994984475f771b0faa730839607eeedddf",
                "sha256:ab136ac51027e7c484c53138a0fab4a8a51e80d05162eb7b1585583bcfdbad27",
                "sha256:c095b224300bcac61e6c445e27f9046981b1ac20d891b2f1714da89d34c637c8",
                "sha256:c5cc52d16c06dc2521340d69adda78a8e1031705924e103c0eb8fc8af861d810",
                "sha256:d612e9833a89e8177f8c1dc68d7b4ff98d3186cd331acd616b01bbdab67d3a7b",
                "sha256:e828376a23c66c6fe90dcea24b4b72cd774f555a6ee94081670872918df87a19",
                "sha256:e9767c7ab2eb552796440168d5c6e23a99ecaade08dda16266d43ad461730192",
                "sha256:ebf8b800d42d217e4710d1582b0c8bff20cdcb4faad7c7213e52644034300924"
            ],
            "version": "==17.1.2"
        },
        "send2trash": {
            "hashes": [
                "sha256:60001cc07d707fe247c94f74ca6ac0d3255aabcb930529690897ca2a39db28b2",
                "sha256:f1691922577b6fa12821234aeb57599d887c4900b9ca537948d2dac34aea888b"
            ],
            "version": "==1.5.0"
        },
        "simplegeneric": {
            "hashes": [
                "sha256:dc972e06094b9af5b855b3df4a646395e43d1c9d0d39ed345b7393560d0b9173"
            ],
            "version": "==0.8.1"
        },
        "six": {
            "hashes": [
                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
            ],
            "version": "==1.11.0"
        },
        "terminado": {
            "hashes": [
                "sha256:55abf9ade563b8f9be1f34e4233c7b7bde726059947a593322e8a553cc4c067a",
                "sha256:65011551baff97f5414c67018e908110693143cfbaeb16831b743fe7cad8b927"
            ],
            "version": "==0.8.1"
        },
        "testpath": {
            "hashes": [
                "sha256:46c89ebb683f473ffe2aab0ed9f12581d4d078308a3cb3765d79c6b2317b0109",
                "sha256:b694b3d9288dbd81685c5d2e7140b81365d46c29f5db4bc659de5aa6b98780f8"
            ],
            "version": "==0.4.2"
        },
        "tornado": {
            "hashes": [
                "sha256:0662d28b1ca9f67108c7e3b77afabfb9c7e87bde174fbda78186ecedc2499a9d",
                "sha256:4e5158d97583502a7e2739951553cbd88a72076f152b4b11b64b9a10c4c49409",
                "sha256:732e836008c708de2e89a31cb2fa6c0e5a70cb60492bee6f1ea1047500feaf7f",
                "sha256:8154ec22c450df4e06b35f131adc4f2f3a12ec85981a203301d310abf580500f",
                "sha256:8e9d728c4579682e837c92fdd98036bd5cdefa1da2aaf6acf26947e6dd0c01c5",
                "sha256:d4b3e5329f572f055b587efc57d29bd051589fb5a43ec8898c77a47ec2fa2bbb",
                "sha256:e5f2585afccbff22390cddac29849df463b252b711aa2ce7c5f3f342a5b3b444"
            ],
            "version": "==5.1.1"
        },
        "traitlets": {
            "hashes": [
                "sha256:9c4bd2d267b7153df9152698efb1050a5d84982d3384a37b2c1f7723ba3e7835",
                "sha256:c6cb5e6f57c5a9bdaa40fa71ce7b4af30298fbab9ece9815b5d995ab6217c7d9"
            ],
            "version": "==4.3.2"
        },
        "wcwidth": {
            "hashes": [
                "sha256:3df37372226d6e63e1b1e1eda15c594bca98a22d33a23832a90998faa96bc65e",
                "sha256:f4ebe71925af7b40a864553f761ed559b43544f8f71746c2d756c7fe788ade7c"
            ],
            "version": "==0.1.7"
        },
        "webencodings": {
            "hashes": [
                "sha256:a0af1213f3c2226497a97e2b3aa01a7e4bee4f403f95be16fc9acd2947514a78",
                "sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923"
            ],
            "version": "==0.5.1"
        }
    }
}

```
</details>

----------------

This is a general question. I know that venv names are made out of project name (folder name) and ``slug value``. For example for me here it is ``simple-v0MobB9A``. 

With venvs created with ``pipenv==2018.5.18`` doing ``pipenv shell`` was transforming my prompt into
(note the space after venv name)
```
(simple-v0MobB9A) machine42 ➜  simple git:(master) ✗
```


Now after updating to ``pipenv==2018.10.9`` I am getting
```
(simple)machine42 ➜  simple git:(master) ✗ 
```

It is awesome that the ``slug value`` is skipped, however, the missing space between ``(simple)`` and ``machine42`` is bothering me. It's a minor issue (don't know if actual issue or bug?) but I find it aesthetically unpleasant and have no idea where it comes from.


Discussion:
BTW. I would be happy to make PR fixing it if someone would point be to right part of code as I am not familiar with code base of this project.
Oops, this is my oversight :p

The code is in `core.py`, in function `do_create_virtualenv()`. Change the prompt argument from `"({})"` to `"({}) "` (with a trailing space).
BTW. I would be happy to make PR fixing it if someone would point be to right part of code as I am not familiar with code base of this project.
Oops, this is my oversight :p

The code is in `core.py`, in function `do_create_virtualenv()`. Change the prompt argument from `"({})"` to `"({}) "` (with a trailing space).

Resolving patch:
diff --git a/pipenv/core.py b/pipenv/core.py
--- a/pipenv/core.py
+++ b/pipenv/core.py
@@ -875,7 +875,7 @@ def do_create_virtualenv(python=None, site_packages=False, pypi_mirror=None):
         sys.executable,
         "-m",
         "virtualenv",
-        "--prompt=({0})".format(project.name),
+        "--prompt=({0}) ".format(project.name),
         "--python={0}".format(python),
         project.get_location_for_virtualenv(),
     ]


Test patch: