code: def main():
      outofdate = False
  
      for project, version in ensurepip._PROJECTS:
          data = json.loads(
              urllib.request.urlopen(
                  "https://pypi.org/pypi/{}/json".format(project),
                  cadefault=True,
              )
              .read()
              .decode("utf8")
          )
          upstream_version = data["info"]["version"]
  
          if version != upstream_version:
              outofdate = True
              print(
                  "The latest version of {} on PyPI is {}, but ensurepip "
                  "has {}".format(project, upstream_version, version)
              )
  
      if outofdate:
          sys.exit(1)
  
imports: import ensurepip
  import json
  import urllib.request
  import sys
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types