Web3.py: Installation failing for web3: Error in eth-keys setup command: 'install_requires'

[razi-rais]

• Python: 2.7
• OS: macOS (High Sierra 10.13.2)

What was wrong?

While installing web3 using pip running into following error (full trace below)

pip install web3

error in eth-keys setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers; Expected ',' or end-of-list in eth-utils>=0.5.0<1.0.0 at <1.0.0

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/tc/456w5zb55g92kgvs7qp3pjt80000gn/T/pip-build-c7er6r/eth-keys/

Not sure what exactly is the issue because I can install eth-keys separately (pip install eth-keys) and it does got installed without any issues.

MacBook-Pro:~ rz$ pip install web3
Collecting web3
Downloading web3-3.16.5.tar.gz (53kB)
100% |████████████████████████████████| 61kB 2.7MB/s
Requirement already satisfied: cytoolz>=0.8.2 in /Library/Python/2.7/site-packages (from web3)
Collecting eth-abi<0.6.0,>=0.5.0 (from web3)
Downloading eth-abi-0.5.0.tar.gz
Collecting eth-utils<1.0.0,>=0.7.1 (from web3)
Downloading eth-utils-0.7.4.tar.gz
Collecting lru-dict>=1.1.6 (from web3)
Downloading lru-dict-1.1.6.tar.gz
Requirement already satisfied: pysha3>=0.3 in /Library/Python/2.7/site-packages (from web3)
Requirement already satisfied: requests>=2.12.4 in /Library/Python/2.7/site-packages (from web3)
Collecting rlp>=0.4.7 (from web3)
Downloading rlp-0.6.0.tar.gz
Requirement already satisfied: toolz>=0.8.2 in /Library/Python/2.7/site-packages (from web3)
Collecting eth-tester==0.1.0b11 (from web3)
Downloading eth-tester-0.1.0b11.tar.gz (48kB)
100% |████████████████████████████████| 51kB 3.0MB/s
Requirement already satisfied: certifi>=2017.4.17 in /Library/Python/2.7/site-packages (from requests>=2.12.4->web3)
Requirement already satisfied: chardet<3.1.0,>=3.0.2 in /Library/Python/2.7/site-packages (from requests>=2.12.4->web3)
Requirement already satisfied: idna<2.7,>=2.5 in /Library/Python/2.7/site-packages (from requests>=2.12.4->web3)
Requirement already satisfied: urllib3<1.23,>=1.21.1 in /Library/Python/2.7/site-packages (from requests>=2.12.4->web3)
Collecting semantic_version<3.0.0,>=2.6.0 (from eth-tester==0.1.0b11->web3)
Downloading semantic_version-2.6.0.tar.gz
Collecting eth-keys<0.2.0,>=0.1.0b3 (from eth-tester==0.1.0b11->web3)
Downloading eth-keys-0.1.0b4.tar.gz
Complete output from command python setup.py egg_info:

Installed /private/var/folders/tc/456w5zb55g92kgvs7qp3pjt80000gn/T/pip-build-c7er6r/eth-keys/.eggs/setuptools_markdown-0.2-py2.7.egg
Searching for pypandoc
Reading https://pypi.python.org/simple/pypandoc/
Best match: pypandoc 1.4
Downloading https://pypi.python.org/packages/71/81/00184643e5a10a456b4118fc12c96780823adb8ed974eb2289f29703b29b/pypandoc-1.4.tar.gz#md5=28d28cf8f1942abf680c040707cee55a
Processing pypandoc-1.4.tar.gz
Writing /var/folders/tc/456w5zb55g92kgvs7qp3pjt80000gn/T/easy_install-mdbpC0/pypandoc-1.4/setup.cfg
Running pypandoc-1.4/setup.py -q bdist_egg --dist-dir /var/folders/tc/456w5zb55g92kgvs7qp3pjt80000gn/T/easy_install-mdbpC0/pypandoc-1.4/egg-dist-tmp-1D2CT_
zip_safe flag not set; analyzing archive contents...
pypandoc.__init__: module references __file__
creating /private/var/folders/tc/456w5zb55g92kgvs7qp3pjt80000gn/T/pip-build-c7er6r/eth-keys/.eggs/pypandoc-1.4-py2.7.egg
Extracting pypandoc-1.4-py2.7.egg to /private/var/folders/tc/456w5zb55g92kgvs7qp3pjt80000gn/T/pip-build-c7er6r/eth-keys/.eggs

Installed /private/var/folders/tc/456w5zb55g92kgvs7qp3pjt80000gn/T/pip-build-c7er6r/eth-keys/.eggs/pypandoc-1.4-py2.7.egg
error in eth-keys setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers; Expected ',' or end-of-list in eth-utils>=0.5.0<1.0.0 at <1.0.0

----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/tc/456w5zb55g92kgvs7qp3pjt80000gn/T/pip-build-c7er6r/eth-keys/

[carver]

Can you try a pip install -U pip setuptools wheel and re-run? I think more recent versions of pip/setuptools can handle that missing comma.

The missing comma is fixed in more recent versions of eth-keys, but web3.py v3 is not compatible with more recent versions for other reasons.

[razi-rais]

Thanks @carver I did try running pip install -U setuptools wheel but ran into following error.

MacBook-Pro:~ rz$ pip install -U pip setuptools wheel

Requirement already up-to-date: pip in /Library/Python/2.7/site-packages
Collecting setuptools
  Downloading setuptools-38.5.1-py2.py3-none-any.whl (489kB)
    100% |████████████████████████████████| 491kB 1.9MB/s 
Requirement already up-to-date: wheel in /Library/Python/2.7/site-packages
Installing collected packages: setuptools
  Found existing installation: setuptools 18.5
    Uninstalling setuptools-18.5:
Exception:
Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/pip/basecommand.py", line 215, in main
    status = self.run(options, args)
  File "/Library/Python/2.7/site-packages/pip/commands/install.py", line 342, in run
    prefix=options.prefix_path,
  File "/Library/Python/2.7/site-packages/pip/req/req_set.py", line 778, in install
    requirement.uninstall(auto_confirm=True)
  File "/Library/Python/2.7/site-packages/pip/req/req_install.py", line 754, in uninstall
    paths_to_remove.remove(auto_confirm)
  File "/Library/Python/2.7/site-packages/pip/req/req_uninstall.py", line 115, in remove
    renames(path, new_path)
  File "/Library/Python/2.7/site-packages/pip/utils/__init__.py", line 267, in renames
    shutil.move(old, new)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 299, in move
    copytree(src, real_dst, symlinks=True)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 208, in copytree
    raise Error, errors
Error: [('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.pyc', '/tmp/pip-R9TbBJ-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.pyc', "[Errno 1] Operation not permitted: '/tmp/pip-R9TbBJ-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.py', '/tmp/pip-R9TbBJ-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.py', "[Errno 1] Operation not permitted: '/tmp/pip-R9TbBJ-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.py', '/tmp/pip-R9TbBJ-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.py', "[Errno 1] Operation not permitted: '/tmp/pip-R9TbBJ-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.pyc', '/tmp/pip-R9TbBJ-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.pyc', "[Errno 1] Operation not permitted: '/tmp/pip-R9TbBJ-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib', '/tmp/pip-R9TbBJ-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib', "[Errno 1] Operation not permitted: '/tmp/pip-R9TbBJ-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib'")]

[carver]

Ah, for a variety of reasons it can be really messy to install python libraries to your global environment. Set up a virtual environment like so: http://web3py.readthedocs.io/en/stable/quickstart.html#environment

Then run the pip install -U pip setuptools wheel, then finally the pip install web3.

[razi-rais]

@carver manage to install web3 in virtualenv. Thanks!

Closing the issue.