Some python package licenses detection issues

[pombredanne]

As reported by @akaihola in #417

I am encountering suspicious results with scancode for a few packages which have either heavily modified licenses or have come up with their own license. Some examples:

• pyproj 1.9.5.1
• Matplotlib 1.5.3 (licenses of some of the included components, e.g. stix, yorick, pnpoly, bakoma, qhull, agg24)
• Pillow 3.4.2

[pombredanne]

@akaihola any hint of the issue you have been facing?

In the meantime I will be running some detection tests for these using these commands:

mkdir 419
cd 419
# these pip commands ensure only sources are fetched (no prebuilt wheels) and that deps are fetched too.
pip download --no-binary :all: -d . pyproj==1.9.5.1
pip download --no-binary :all: -d . Matplotlib==1.5.3
pip download --no-binary :all: -d . Pillow==3.4.2
extractcode --verbose .
scancode -n 4 -clip . ../py-419.json

[pombredanne]

@akaihola there are indeed some inaccurate detections. I will commit new detection rules and tests.

[pombredanne]

@akaihola I have not forgotten you here... I will come back to this this week.

[SidharajYadav]

how i can contribute in this issuse