Aws-sam-cli: Can't install aws-sam-cli on my laptop

[twoyang0917]

Description:
The error message I got when I tried to install aws-sam-cli on my laptop.

$ pip install --user aws-sam-cli
Collecting aws-sam-cli
  Downloading https://files.pythonhosted.org/packages/ed/0a/448016d5004d1353229b6081c7a05d84c38be5bc70db72d0ac366372fc78/aws-sam-cli-0.6.0.tar.gz (151kB)
    100% |████████████████████████████████| 153kB 1.5MB/s
    Complete output from command python setup.py egg_info:
    /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'python_requires'
      warnings.warn(msg)
    error in aws-sam-cli setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers; Expected ',' or end-of-list in pathlib2~=2.3.2; python_version<"3.4" at ; python_version<"3.4"

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/tmp/pip-install-YXg_6p/aws-sam-cli/

Steps to reproduce the issue:
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Observed result:

Expected result:

Additional environment details (Ex: Windows, Mac, Amazon Linux etc)
Mac

$ pip --version
pip 18.0 from /Library/Python/2.7/site-packages/pip (python 2.7)

Output of sam --version:

Optional Debug logs:

Add --debug flag to command you are running

[mscharley]

I'm also having the same issue with the node:8.10 docker container with both python 2.7.9 and python 3.4.2 and pip 1.5.6 in both cases:

Downloading/unpacking aws-sam-cli
  Downloading aws-sam-cli-0.6.0.tar.gz (151kB): 151kB downloaded
  Running setup.py (path:/tmp/pip-build-87jhq37k/aws-sam-cli/setup.py) egg_info for package aws-sam-cli
    /usr/lib/python3.4/distutils/dist.py:260: UserWarning: Unknown distribution option: 'python_requires'
      warnings.warn(msg)
    error in aws-sam-cli setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers
    Complete output from command python setup.py egg_info:
    /usr/lib/python3.4/distutils/dist.py:260: UserWarning: Unknown distribution option: 'python_requires'
  warnings.warn(msg)
error in aws-sam-cli setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers
----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /tmp/pip-build-87jhq37k/aws-sam-cli
Storing debug log for failure in /root/.pip/pip.log

[sanathkr]

I think you are having an old version of setuptools package in your computer. Can you upgrade using pip install -U setuptools and try again?

[mscharley]

Hi Sanath,

That seems to have fixed the issue for me.

[twoyang0917]

Hi Sanath,

also works for me. thank you.

[legtzp]

This solution did not work for me, but I installed it using brew https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-sam-cli-install-mac.html

brew upgrade
brew update
brew tap aws/tap
brew install aws-sam-cli

Hope that helps someone :)