[QGIS-Developer] Pip install not working within QGIS with OSGeo4W v2?

[Axel Hörteborn]

Hi dev team,

I might have missed something but I can't get "pip install" to work within
QGIS I've tried a few different options on a couple of different windows
computers.

I use matplotlib, psycopg2 and reportlab within my plugin and I have some
simple code that installs the packages for the users:

import sysimport platformimport subprocesstry:
    import matplotlibexcept ModuleNotFoundError:
    print('installing matplotlib')
    if platform.system() == 'Windows':
        subprocess.call([sys.exec_prefix + '/python', "-m", 'pip',
'install', 'matplotlib'])
    else:
        subprocess.call(['python3', '-m', 'pip', 'install', 'matplotlib'])

But I get:

WARNING: pip is configured with locations that require TLS/SSL, however the
ssl module in Python is not available.

WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None,
status=None)) after connection broken by 'SSLError("Can't connect to HTTPS
URL because the SSL module is not available.")': /simple/matplotlib/

I can install the packages from the OSGeo4W shell (after removing the path
to a local pip server) but it would be nice if they could be installed
automatic for the users (which works fine with QGIS installed by OSGeo4W
v1..).

Have I missed some change or is this a bug? (can someone else confirm it?)

Best regards
Axel Hörteborn
Maintainer of GeoDataFarm
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