python requests can't find a folder with a certificate when converted to .exe

Question

I have a program that pools ad stats from different marketing systems. Everything works fine untill i convert it to the .exe format and run it.

Exception in          


        

Answer 1

I ran into this problem as well. It looks like it comes from the certificate bundle cacert.pem not being included in the requests package directory when the program is compiled. The requests module uses the function certifi.core.where to determine the location of cacert.pem. Overriding this function and overriding the variables set by this function seems to fix the problem.

I added this code to the beginning of my program:

import sys, os


def override_where():
    """ overrides certifi.core.where to return actual location of cacert.pem"""
    # change this to match the location of cacert.pem
    return os.path.abspath("cacert.pem")


# is the program compiled?
if hasattr(sys, "frozen"):
    import certifi.core

    os.environ["REQUESTS_CA_BUNDLE"] = override_where()
    certifi.core.where = override_where

    # delay importing until after where() has been replaced
    import requests.utils
    import requests.adapters
    # replace these variables in case these modules were
    # imported before we replaced certifi.core.where
    requests.utils.DEFAULT_CA_BUNDLE_PATH = override_where()
    requests.adapters.DEFAULT_CA_BUNDLE_PATH = override_where()

Answer 2

This might be issue with requests package.

I solved this by manually copying the cacert.pem file from /lib/site-packages/certifi to /lib/site-packages/requests

If you want to fix this issue with .exe, then cacert.pem file from /lib/site-packages/certifi to dist/library.zip/certifi/.

I am considering you have created exe using py2exe, where py2exe will create library.zip under dist/ which contains of all script dependencies. I don't know if other exe converters create library.zip.

Hope this helps.