Running gulp task to install python libraries fails due the comments

[karthiknadig]

Repro steps:

1. In master delete everything under pythonFiles/lib/python.
2. Run the gulp task installPythonLibs.

Expected

It should install all the python libraries.

Actual

ERROR: Invalid requirement: '#'

ERROR: Invalid requirement: '# To update, run:'


Usage:
  C:\Python37\python.exe -m pip install [options] <requirement specifier> [package-index-options] ...      
  C:\Python37\python.exe -m pip install [options] -r <requirements file> [package-index-options] ...       
  C:\Python37\python.exe -m pip install [options] [-e] <vcs project url> ...
  C:\Python37\python.exe -m pip install [options] [-e] <local project path> ...
  C:\Python37\python.exe -m pip install [options] <archive url/path> ...

no such option: --hash


Usage:
  C:\Python37\python.exe -m pip install [options] <requirement specifier> [package-index-options] ...      
  C:\Python37\python.exe -m pip install [options] -r <requirements file> [package-index-options] ...       
  C:\Python37\python.exe -m pip install [options] [-e] <vcs project url> ...
  C:\Python37\python.exe -m pip install [options] [-e] <local project path> ...
  C:\Python37\python.exe -m pip install [options] <archive url/path> ...

no such option: --hash


Usage:
  C:\Python37\python.exe -m pip install [options] <requirement specifier> [package-index-options] ...      
  C:\Python37\python.exe -m pip install [options] -r <requirements file> [package-index-options] ...       
  C:\Python37\python.exe -m pip install [options] [-e] <vcs project url> ...
  C:\Python37\python.exe -m pip install [options] [-e] <local project path> ...
  C:\Python37\python.exe -m pip install [options] <archive url/path> ...

no such option: --hash

ERROR: Invalid requirement: '#    pip-compile --generate-hashes'

ERROR: Invalid requirement: '# via python-jsonrpc-server'

ERROR: Invalid requirement: '#'

ERROR: Invalid requirement: '# via jedi'

[luabud]

See if we can use pip directly

[brettcannon]

gulp.task('installPythonRequirements', async () => {
    const requirements_path = path.join(__dirname, 'requirements.txt');
    const args = ['-m', 'pip', '--disable-pip-version-check', 'install', '-t', './pythonFiles/lib/python', '--no-cache-dir', '--implementation', 'py', '--no-deps', '--upgrade', '-r', requirements_path];
    success = await spawnAsync(process.env.CI_PYTHON_PATH || 'python3', args.concat(requirement))
            .then(() => true)
            .catch(ex => {
                console.error("Failed to install Python Libs using 'python3'", ex);
                return false;
            });
    if (!success) {
        console.info("Failed to install Python Libs using 'python3', attempting to install using 'python'");
        await spawnAsync('python', args.concat(requirement)).catch(ex => console.error("Failed to install Python Libs using 'python'", ex));
    }
});

[karrtikr]

Validated