Issues in Virtual Environment

[bregnery]

Getting pip to install the correct packages in the virtual environment results in conflicts.

Types of issue

• Bug report (report an issue with the code)
• Feature request (request for change which adds functionality)

Expected Behavior

$ pip install -U requirements-dev.txt
$ pip install rpm/gempython_gemplotting-1.3.1-dev1.dev45.zip

Then, the package is ready to use in the vitual environment

Current Behavior

$ pip install -U requirements-dev.txt

It looks like you meant to type `pip install -r requirements-dev.txt`, but you left out the `-r` by accident. Aborting installation.

$ pip install -r requirements-dev.txt

Exception:
Traceback (most recent call last):
  File "/data/bigdisk/users/bregnery/venvs/inflectionEnv/lib/python2.7/site-packages/pip/basecommand.py", line 134, in main
    status = self.run(options, args)
  File "/data/bigdisk/users/bregnery/venvs/inflectionEnv/lib/python2.7/site-packages/pip/commands/install.py", line 220, in run
    for req in parse_requirements(filename, finder=finder, options=options):
  File "/data/bigdisk/users/bregnery/venvs/inflectionEnv/lib/python2.7/site-packages/pip/req.py", line 1477, in parse_requirements
    req = InstallRequirement.from_line(line, comes_from, prereleases=getattr(options, "pre", None))
  File "/data/bigdisk/users/bregnery/venvs/inflectionEnv/lib/python2.7/site-packages/pip/req.py", line 129, in from_line
    return cls(req, comes_from, url=url, prereleases=prereleases)
  File "/data/bigdisk/users/bregnery/venvs/inflectionEnv/lib/python2.7/site-packages/pip/req.py", line 44, in __init__
    req = pkg_resources.Requirement.parse(req)
  File "/data/bigdisk/users/bregnery/venvs/inflectionEnv/lib/python2.7/site-packages/pkg_resources.py", line 2914, in parse
    reqs = list(parse_requirements(s))
  File "/data/bigdisk/users/bregnery/venvs/inflectionEnv/lib/python2.7/site-packages/pkg_resources.py", line 2839, in parse_requirements
    line, p, specs = scan_list(VERSION,LINE_END,line,p,(1,2),"version spec")
  File "/data/bigdisk/users/bregnery/venvs/inflectionEnv/lib/python2.7/site-packages/pkg_resources.py", line 2817, in scan_list
    "Expected ',' or end-of-list in",line,"at",line[p:]
ValueError: ("Expected ',' or end-of-list in", "sphinx<1.5; python_version == '2.6',", 'at', "; python_version == '2.6',")

Steps to Reproduce (for bugs)

Follow commands in current behavior

Possible Solution (for bugs)

Update requirements-dev.txt to be used with the commands contained in .ci/test_on_docker.sh

$    pip install -U "pip<10" importlib
$   pip install -U setuptools
$    pip install -U codecov
$    pip install -U -r requirements.txt
$   pip install -U root_numpy
$   pip install rpm/gempython_gemplotting-1.3.1-dev1.dev45.zip

This correctly installs the package in the virtual environment

Context (for feature requests)

Trying to install package in virtual environment

Your Environment

• Version used: f0e2844
• Shell used: Bash

[bdorney]

Instead of trying to install the requirements and then the package did you try to just install the package directly? e.g. just:

$ pip install rpm/gempython_gemplotting-1.3.1-dev1.dev45.zip

Here pip should look at the package, see what it requires, attempt to automatically install the requirements and then install the package. There might be an issue in the requirements txt file but I expect installing the package itself would work.

[bregnery]

I tried that and it failed. I don't have the error message. I could try again tomorrow with a new virtual environment and put the error message here.

[jsturdy]

Sorry, two separate issues here:

• pip install -U -r requirements-dev.txt should be used in the developing environment (these packages are required for running the build process)
• pip install -U -r requirements.txt should be run in the testing environment

These two steps are what the .ci/test_on_docker.sh script is basically doing

These environments can be the same

The second issue is that requirements-dev.txt seems broken currently, but should double check with the correct syntax (using -U for upgrade, in addition to -r to specify the requirements file)