Fails to install existing package in local package index

[cornelinux]

I create a local package index.
I used pip2pi 0.8.0 and ran it like:

% pip2tgz /tmp/packages <mypackage>
% pip2tgz /tmp/packages -r requirements.txt
% dir2pi /tmp/packages

Then I try to use this local package index.
But some package fail to install, like "Flask-Migrate", which was a dependency when I created the package index.

It fails like this:

% pip install -v --index-url=file:///tmp/packages/simple Flask-Migrate
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
Created temporary directory: /tmp/pip-ephem-wheel-cache-Ki7Psq
Created temporary directory: /tmp/pip-req-tracker-sw4mfK
Created requirements tracker '/tmp/pip-req-tracker-sw4mfK'
Created temporary directory: /tmp/pip-install-xve0jb
Looking in indexes: file:///tmp/packages/simple
Collecting Flask-Migrate
  1 location(s) to search for versions of Flask-Migrate:
  * file:///tmp/packages/simple/flask-migrate/
   file: URL is directory, getting file:///tmp/packages/simple/flask-migrate/index.html
  Getting page file:///tmp/packages/simple/flask-migrate/index.html
  Analyzing links from page file:///tmp/packages/simple/flask-migrate/index.html
    Skipping link file:///tmp/packages/simple/flask-migrate/Flask-Migrate-2.4.0-py2.py3-none-any.whl (from file:///tmp/packages/simple/flask-migrate/index.html); wrong project name (not Flask-Migrate)
  Could not find a version that satisfies the requirement Flask-Migrate (from versions: )
Cleaning up...
Removed build tracker '/tmp/pip-req-tracker-sw4mfK'
No matching distribution found for Flask-Migrate
Exception information:
Traceback (most recent call last):
  File "/home/cornelius/src/ubuntu/DEBUILD/privacyidea.orig/TEST/local/lib/python2.7/site-packages/pip/_internal/cli/base_command.py", line 179, in main
    status = self.run(options, args)
  File "/home/cornelius/src/ubuntu/DEBUILD/privacyidea.orig/TEST/local/lib/python2.7/site-packages/pip/_internal/commands/install.py", line 315, in run
    resolver.resolve(requirement_set)
  File "/home/cornelius/src/ubuntu/DEBUILD/privacyidea.orig/TEST/local/lib/python2.7/site-packages/pip/_internal/resolve.py", line 131, in resolve
    self._resolve_one(requirement_set, req)
  File "/home/cornelius/src/ubuntu/DEBUILD/privacyidea.orig/TEST/local/lib/python2.7/site-packages/pip/_internal/resolve.py", line 294, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "/home/cornelius/src/ubuntu/DEBUILD/privacyidea.orig/TEST/local/lib/python2.7/site-packages/pip/_internal/resolve.py", line 242, in _get_abstract_dist_for
    self.require_hashes
  File "/home/cornelius/src/ubuntu/DEBUILD/privacyidea.orig/TEST/local/lib/python2.7/site-packages/pip/_internal/operations/prepare.py", line 269, in prepare_linked_requirement
    req.populate_link(finder, upgrade_allowed, require_hashes)
  File "/home/cornelius/src/ubuntu/DEBUILD/privacyidea.orig/TEST/local/lib/python2.7/site-packages/pip/_internal/req/req_install.py", line 196, in populate_link
    self.link = finder.find_requirement(self, upgrade)
  File "/home/cornelius/src/ubuntu/DEBUILD/privacyidea.orig/TEST/local/lib/python2.7/site-packages/pip/_internal/index.py", line 688, in find_requirement
    'No matching distribution found for %s' % req
DistributionNotFound: No matching distribution found for Flask-Migrate

[Ezibenroc]

I have the same problem for package cryptography using Python 3.8.

With pip2pi it fails with the error "not a supported wheel on this platform":

pip2pi /tmp/packages/ cryptography
pip install /tmp/packages/cryptography*.whl

With a simple pip download it works:

pip download cryptography
pip install cryptography*.whl

Note that the wheel actually used in both cases differ.

• pip2pi downloads the wheel cryptography-36.0.1-cp36-abi3-manylinux_2_24_x86_64.whl
• pip downloads the wheel cryptography-36.0.1-cp36-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl

I am not sure of the difference between these two wheels. I tried to unzip them and compute a checksum for each of their files, there are only 4 different files:

• cryptography-36.0.1.dist-info/RECORD
• cryptography-36.0.1.dist-info/WHEEL
• cryptography/hazmat/bindings/_openssl.abi3.so
• cryptography/hazmat/bindings/_rust.abi3.so