KeyError: 'response'

[FirefighterBlu3]

Didn't investigate the actual cause, so this is debug information. Pip employs requests and requests pulls in CacheControl. It appears that the received response is all in byte form and cachecontrol is expecting str. At cachecontrol/serialize.py the cached dictionary appears as:

Try/except added by me:

    121         try:
    122             body_raw = cached["response"].pop("body")
    123         except:
    124             print(f'cached: {pprint.pformat(cached)}')
    125             raise

cached: {b'response': {b'body': b'\x1f\x8b\x08\x[...]\x00',
               b'decode_content': False,
               b'headers': {b'Accept-Ranges': b'bytes',
                            b'Cache-Control': b'max-age=600, public',
                            b'Connection': b'keep-alive',
                            b'Content-Encoding': b'gzip',
                            b'Content-Length': b'7232',
                            b'Content-Security-Policy': b"default-src 'none'; "
                                                        b'sandbox allow-top-na'
                                                        b'vigation',
                            b'Content-Type': b'text/html; charset=UTF-8',
                            b'Date': b'Sun, 04 Aug 2019 20:03:15 GMT',
                            b'ETag': b'"1+i6Q+/bMTajoUYjsBJZIw"',
                            b'Referrer-Policy': b'origin-when-cross-origin',
                            b'Server': b'nginx/1.13.9',
                            b'Strict-Transport-Security': b'max-age=31536000'
                                                          b'; includeSubDoma'
                                                          b'ins; preload',
                            b'Vary': b'Accept-Encoding',
                            b'X-Cache': b'HIT, HIT',
                            b'X-Cache-Hits': b'31, 1',
                            b'X-Content-Type-Options': b'nosniff',
                            b'X-Frame-Options': b'deny',
                            b'X-Permitted-Cross-Domain-Policies': b'none',
                            b'X-PyPI-Last-Serial': b'5437841',
                            b'X-Served-By': b'cache-iad2139-IAD, cache-mia1762'
                                            b'6-MIA',
                            b'X-Timer': b'S1564948996.655315,VS0,VE1',
                            b'X-XSS-Protection': b'1; mode=block'},
               b'reason': b'OK',
               b'status': 200,
               b'strict': 0,
               b'version': 11},
 b'vary': {b'Accept-Encoding': b'gzip, deflate'}}