How to fix python2-dialog yum error

### yum update error in **python2-dialog**

```
# yum install python2-dialog

Loaded plugins: langpacks, ulninfo
Resolving Dependencies
--> Running transaction check
---> Package python2-dialog.noarch 0:3.3.0-6.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package                Arch           Version               Repository    Size
================================================================================
Installing:
 python2-dialog         noarch         3.3.0-6.el7           epel          94 k

Transaction Summary
================================================================================
Install  1 Package

Total download size: 94 k
Installed size: 508 k
Is this ok [y/d/N]: y
Downloading packages:
python2-dialog-3.3.0-6.el7.noarch.rpm                      |  94 kB   00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : python2-dialog-3.3.0-6.el7.noarch                            1/1 
Error unpacking rpm package python2-dialog-3.3.0-6.el7.noarch
error: unpacking of archive failed on file /usr/lib/python2.7/site-packages/python2_pythondialog-3.3.0-py2.7.egg-info: cpio: rename
  Verifying  : python2-dialog-3.3.0-6.el7.noarch                            1/1 

Failed:
  python2-dialog.noarch 0:3.3.0-6.el7                                           

Complete!
```


### check pip

```
# pip list
certbot (0.18.1)
python2-pythondialog (3.3.0)
```

### remove from pip, then yum update

```
# pip uninstall python2-pythondialog
Uninstalling python2-pythondialog-3.3.0:
  /usr/lib/python2.7/site-packages/dialog.py
  /usr/lib/python2.7/site-packages/dialog.pyc
  /usr/lib/python2.7/site-packages/python2_pythondialog-3.3.0-py2.7.egg-info
Proceed (y/n)? y
  Successfully uninstalled python2-pythondialog-3.3.0

```

```
# yum install python2-dialog
Loaded plugins: langpacks, ulninfo
Resolving Dependencies
--> Running transaction check
---> Package python2-dialog.noarch 0:3.3.0-6.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package                Arch           Version               Repository    Size
================================================================================
Installing:
 python2-dialog         noarch         3.3.0-6.el7           epel          94 k

Transaction Summary
================================================================================
Install  1 Package

Total download size: 94 k
Installed size: 508 k
Is this ok [y/d/N]: y
Downloading packages:
python2-dialog-3.3.0-6.el7.noarch.rpm                      |  94 kB   00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : python2-dialog-3.3.0-6.el7.noarch                            1/1 
  Verifying  : python2-dialog-3.3.0-6.el7.noarch                            1/1 

Installed:
  python2-dialog.noarch 0:3.3.0-6.el7                                           

Complete!
```

:smile: