electrum

Electrum Bitcoin wallet
git clone https://git.parazyd.org/electrum
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find_restricted_dependencies.py (1373B)

      1 #!/usr/bin/env python3
      2 import sys
      3 
      4 try:
      5     import requests
      6 except ImportError as e:
      7     sys.exit(f"Error: {str(e)}. Try 'sudo python3 -m pip install <module-name>'")
      8 
      9 
     10 def check_restriction(p, r):
     11     # See: https://www.python.org/dev/peps/pep-0496/
     12     # Hopefully we don't need to parse the whole microlanguage
     13     if "extra" in r and "[" not in p:
     14         return False
     15     for marker in ["os_name", "platform_release", "sys_platform", "platform_system"]:
     16         if marker in r:
     17             return True
     18 
     19 
     20 for p in sys.stdin.read().split():
     21     p = p.strip()
     22     if not p:
     23         continue
     24     assert "==" in p, "This script expects a list of packages with pinned version, e.g. package==1.2.3, not {}".format(p)
     25     p, v = p.rsplit("==", 1)
     26     try:
     27         data = requests.get("https://pypi.org/pypi/{}/{}/json".format(p, v)).json()["info"]
     28     except ValueError:
     29         raise Exception("Package could not be found: {}=={}".format(p, v))
     30     try:
     31         for r in data["requires_dist"]:
     32             if ";" not in r:
     33                 continue
     34             d, restricted = r.split(";", 1)
     35             if check_restriction(d, restricted):
     36                 print(d, sep=" ")
     37                 print("Installing {} from {} although it is only needed for {}".format(d, p, restricted), file=sys.stderr)
     38     except TypeError:
     39         # Has no dependencies at all
     40         continue
     41