Issue 1:
I am not sure where it goes wrong, but after reading tons of posts online I figured the combination tensor flow, Virtualenv en python 3.7 is not valid on Mac OSX.

I use python3.6 now and it is fine.

Sorry I can not provide more info, I'm broken by the struggle and want to sleep and forget about it.

Issue 2:
I'm sure developers are working hard to catch up with Python 3.7.

Is there any timeline?

pip3 install tensorflow - apparently does not work, building from source:

OS Platform and Distribution: Mac OS X 10.13.5

Python: Python 3.7.0 (Homebrew)

TensorFlow installed from: source (https://github.com/tensorflow/tensorflow.git)

TensorFlow version: TensorFlow 1.9.0-rc2

Bazel version:

Build label: 0.15.0-homebrew
Build target: bazel-out/darwin-opt/bin/src/main/java/com/google/devtools/build/lib/bazel/BazelServer_deploy.jar
Build time: Tue Jun 26 12:42:27 2018 (1530016947)
Build timestamp: 1530016947
Build timestamp as int: 1530016947

CUDA/cuDNN version: None

GPU model and memory: None

Exact command to reproduce:

bazel build --config=opt //tensorflow/tools/pip_package:build_pip_package

Starting local Bazel server and connecting to it...
...........................
WARNING: /private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/grpc/BUILD:1992:1: in srcs attribute of cc_library rule @grpc//:grpc_nanopb: please do not import '@grpc//third_party/nanopb:pb_common.c' directly. You should either move the file to this package or depend on an appropriate rule there. Since this rule was created by the macro 'grpc_generate_one_off_targets', the error might have been caused by the macro implementation in /private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/grpc/bazel/grpc_build_system.bzl:172:12
WARNING: /private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/grpc/BUILD:1992:1: in srcs attribute of cc_library rule @grpc//:grpc_nanopb: please do not import '@grpc//third_party/nanopb:pb_decode.c' directly. You should either move the file to this package or depend on an appropriate rule there. Since this rule was created by the macro 'grpc_generate_one_off_targets', the error might have been caused by the macro implementation in /private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/grpc/bazel/grpc_build_system.bzl:172:12
WARNING: /private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/grpc/BUILD:1992:1: in srcs attribute of cc_library rule @grpc//:grpc_nanopb: please do not import '@grpc//third_party/nanopb:pb_encode.c' directly. You should either move the file to this package or depend on an appropriate rule there. Since this rule was created by the macro 'grpc_generate_one_off_targets', the error might have been caused by the macro implementation in /private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/grpc/bazel/grpc_build_system.bzl:172:12
WARNING: /Users/zardoz/Projects/tensorflow/tensorflow/contrib/learn/BUILD:17:1: in py_library rule //tensorflow/contrib/learn:learn: target '//tensorflow/contrib/learn:learn' depends on deprecated target '//tensorflow/contrib/session_bundle:exporter': No longer supported. Switch to SavedModel immediately.
WARNING: /Users/zardoz/Projects/tensorflow/tensorflow/contrib/learn/BUILD:17:1: in py_library rule //tensorflow/contrib/learn:learn: target '//tensorflow/contrib/learn:learn' depends on deprecated target '//tensorflow/contrib/session_bundle:gc': No longer supported. Switch to SavedModel immediately.
WARNING: /Users/zardoz/Projects/tensorflow/tensorflow/contrib/timeseries/python/timeseries/BUILD:356:1: in py_library rule //tensorflow/contrib/timeseries/python/timeseries:ar_model: target '//tensorflow/contrib/timeseries/python/timeseries:ar_model' depends on deprecated target '//tensorflow/contrib/distributions:distributions_py': TensorFlow Distributions has migrated to TensorFlow Probability (https://github.com/tensorflow/probability). Deprecated copies remaining in tf.contrib.distributions are unmaintained, unsupported, and will be removed by late 2018. You should update all usage of `tf.contrib.distributions` to `tfp.distributions`.
WARNING: /Users/zardoz/Projects/tensorflow/tensorflow/contrib/timeseries/python/timeseries/state_space_models/BUILD:73:1: in py_library rule //tensorflow/contrib/timeseries/python/timeseries/state_space_models:kalman_filter: target '//tensorflow/contrib/timeseries/python/timeseries/state_space_models:kalman_filter' depends on deprecated target '//tensorflow/contrib/distributions:distributions_py': TensorFlow Distributions has migrated to TensorFlow Probability (https://github.com/tensorflow/probability). Deprecated copies remaining in tf.contrib.distributions are unmaintained, unsupported, and will be removed by late 2018. You should update all usage of `tf.contrib.distributions` to `tfp.distributions`.
WARNING: /Users/zardoz/Projects/tensorflow/tensorflow/contrib/timeseries/python/timeseries/state_space_models/BUILD:230:1: in py_library rule //tensorflow/contrib/timeseries/python/timeseries/state_space_models:filtering_postprocessor: target '//tensorflow/contrib/timeseries/python/timeseries/state_space_models:filtering_postprocessor' depends on deprecated target '//tensorflow/contrib/distributions:distributions_py': TensorFlow Distributions has migrated to TensorFlow Probability (https://github.com/tensorflow/probability). Deprecated copies remaining in tf.contrib.distributions are unmaintained, unsupported, and will be removed by late 2018. You should update all usage of `tf.contrib.distributions` to `tfp.distributions`.
WARNING: /Users/zardoz/Projects/tensorflow/tensorflow/contrib/bayesflow/BUILD:17:1: in py_library rule //tensorflow/contrib/bayesflow:bayesflow_py: target '//tensorflow/contrib/bayesflow:bayesflow_py' depends on deprecated target '//tensorflow/contrib/distributions:distributions_py': TensorFlow Distributions has migrated to TensorFlow Probability (https://github.com/tensorflow/probability). Deprecated copies remaining in tf.contrib.distributions are unmaintained, unsupported, and will be removed by late 2018. You should update all usage of `tf.contrib.distributions` to `tfp.distributions`.
WARNING: /Users/zardoz/Projects/tensorflow/tensorflow/contrib/seq2seq/BUILD:23:1: in py_library rule //tensorflow/contrib/seq2seq:seq2seq_py: target '//tensorflow/contrib/seq2seq:seq2seq_py' depends on deprecated target '//tensorflow/contrib/distributions:distributions_py': TensorFlow Distributions has migrated to TensorFlow Probability (https://github.com/tensorflow/probability). Deprecated copies remaining in tf.contrib.distributions are unmaintained, unsupported, and will be removed by late 2018. You should update all usage of `tf.contrib.distributions` to `tfp.distributions`.
WARNING: /Users/zardoz/Projects/tensorflow/tensorflow/contrib/kfac/python/ops/BUILD:80:1: in py_library rule //tensorflow/contrib/kfac/python/ops:loss_functions: target '//tensorflow/contrib/kfac/python/ops:loss_functions' depends on deprecated target '//tensorflow/contrib/distributions:distributions_py': TensorFlow Distributions has migrated to TensorFlow Probability (https://github.com/tensorflow/probability). Deprecated copies remaining in tf.contrib.distributions are unmaintained, unsupported, and will be removed by late 2018. You should update all usage of `tf.contrib.distributions` to `tfp.distributions`.
WARNING: /Users/zardoz/Projects/tensorflow/tensorflow/contrib/BUILD:14:1: in py_library rule //tensorflow/contrib:contrib_py: target '//tensorflow/contrib:contrib_py' depends on deprecated target '//tensorflow/contrib/distributions:distributions_py': TensorFlow Distributions has migrated to TensorFlow Probability (https://github.com/tensorflow/probability). Deprecated copies remaining in tf.contrib.distributions are unmaintained, unsupported, and will be removed by late 2018. You should update all usage of `tf.contrib.distributions` to `tfp.distributions`.
INFO: Analysed target //tensorflow/tools/pip_package:build_pip_package (303 packages loaded).
INFO: Found 1 target...
INFO: From Linking external/grpc/libgrpc_base_c.a [for host]:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(endpoint_pair_uv.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(endpoint_pair_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(ev_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(fork_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(gethostname_fallback.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(gethostname_host_name_max.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(iocp_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(iomgr_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(pollset_set_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(pollset_uv.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(pollset_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(resolve_address_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(socket_utils_linux.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(socket_utils_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(socket_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(tcp_client_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(tcp_server_utils_posix_noifaddrs.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(tcp_server_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(tcp_uv.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(tcp_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(timer_uv.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(unix_sockets_posix_noop.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc_base_c.a(wakeup_fd_eventfd.o) has no symbols
INFO: From Linking external/grpc/libalts_util.a [for host]:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libalts_util.a(check_gcp_environment_linux.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libalts_util.a(check_gcp_environment_windows.o) has no symbols
INFO: From Linking external/grpc/libtsi.a [for host]:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libtsi.a(ssl_session_openssl.o) has no symbols
INFO: From Linking external/grpc/libgrpc++_base.a [for host]:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgrpc++_base.a(rpc_method.o) has no symbols
INFO: From Linking external/grpc/libgpr_base.a [for host]:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(cpu_iphone.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(cpu_linux.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(cpu_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(env_linux.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(env_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(log_android.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(log_linux.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(log_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(string_util_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(string_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(sync_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(time_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(tls_pthread.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(tmpfile_msys.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(tmpfile_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(wrap_memcpy.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(thd_windows.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/libgpr_base.a(stap_timers.o) has no symbols
INFO: From Linking external/grpc/third_party/address_sorting/libaddress_sorting.a [for host]:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: bazel-out/host/bin/external/grpc/third_party/address_sorting/libaddress_sorting.a(address_sorting_windows.o) has no symbols
ERROR: /Users/zardoz/Projects/tensorflow/tensorflow/python/BUILD:5315:1: Executing genrule //tensorflow/python:framework/fast_tensor_util.pyx_cython_translation failed (Exit 1)
Traceback (most recent call last):
File "/private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/execroot/org_tensorflow/bazel-out/host/bin/external/cython/cython_binary.runfiles/cython/cython.py", line 17, in <module>
main(command_line = 1)
File "/private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/cython/Cython/Compiler/Main.py", line 720, in main
result = compile(sources, options)
File "/private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/cython/Cython/Compiler/Main.py", line 695, in compile
return compile_multiple(source, options)
File "/private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/cython/Cython/Compiler/Main.py", line 666, in compile_multiple
context = options.create_context()
File "/private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/cython/Cython/Compiler/Main.py", line 590, in create_context
self.cplus, self.language_level, options=self)
File "/private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/cython/Cython/Compiler/Main.py", line 75, in __init__
from . import Builtin, CythonScope
File "/private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/cython/Cython/Compiler/CythonScope.py", line 5, in <module>
from .UtilityCode import CythonUtilityCode
File "/private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/cython/Cython/Compiler/UtilityCode.py", line 3, in <module>
from .TreeFragment import parse_from_strings, StringParseContext
File "/private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/cython/Cython/Compiler/TreeFragment.py", line 17, in <module>
from .Visitor import VisitorTransform
File "/private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/cython/Cython/Compiler/Visitor.py", line 15, in <module>
from . import ExprNodes
File "/private/var/tmp/_bazel_zardoz/5e080a8a46c0e2b2146c013eb1079337/external/cython/Cython/Compiler/ExprNodes.py", line 2875
await = None
^
SyntaxError: invalid syntax
Target //tensorflow/tools/pip_package:build_pip_package failed to build
Use --verbose_failures to see the command lines of failed build steps.
INFO: Elapsed time: 179.318s, Critical Path: 6.38s
INFO: 413 processes: 413 local.
FAILED: Build did NOT complete successfully