old_contents: #!/usr/bin/env python
  from __future__ import annotations
  
  import os
  import subprocess
  import sys
  from pathlib import Path
  
  if __name__ == "__main__":
      os.chdir(Path(__file__).parent)
      os.environ["CUSTOM_COMPILE_COMMAND"] = "requirements/compile.py"
      os.environ.pop("PIP_REQUIRE_VIRTUALENV", None)
      common_args = [
          "-m",
          "piptools",
          "compile",
          "--generate-hashes",
          "--allow-unsafe",
      ] + sys.argv[1:]
      subprocess.run(
          ["python3.7", *common_args, "-o", "py37.txt"],
          check=True,
          capture_output=True,
      )
      subprocess.run(
          ["python3.8", *common_args, "-o", "py38.txt"],
          check=True,
          capture_output=True,
      )
      subprocess.run(
          ["python3.9", *common_args, "-o", "py39.txt"],
          check=True,
          capture_output=True,
      )
      subprocess.run(
          ["python3.10", *common_args, "-o", "py310.txt"],
          check=True,
          capture_output=True,
      )
      subprocess.run(
          ["python3.11", *common_args, "-o", "py311.txt"],
          check=True,
          capture_output=True,
      )
  
new_contents: #!/usr/bin/env python
  from __future__ import annotations
  
  import os
  import subprocess
  import sys
  from pathlib import Path
  
  if __name__ == "__main__":
      os.chdir(Path(__file__).parent)
      os.environ["CUSTOM_COMPILE_COMMAND"] = "requirements/compile.py"
      os.environ["PIP_REQUIRE_VIRTUALENV"] = "0"
      common_args = [
          "-m",
          "piptools",
          "compile",
          "--generate-hashes",
          "--allow-unsafe",
      ] + sys.argv[1:]
      subprocess.run(
          ["python3.7", *common_args, "-o", "py37.txt"],
          check=True,
          capture_output=True,
      )
      subprocess.run(
          ["python3.8", *common_args, "-o", "py38.txt"],
          check=True,
          capture_output=True,
      )
      subprocess.run(
          ["python3.9", *common_args, "-o", "py39.txt"],
          check=True,
          capture_output=True,
      )
      subprocess.run(
          ["python3.10", *common_args, "-o", "py310.txt"],
          check=True,
          capture_output=True,
      )
      subprocess.run(
          ["python3.11", *common_args, "-o", "py311.txt"],
          check=True,
          capture_output=True,
      )
  
subject: Make requirements compile disable pip's require-virtualenv flag always