Keys must be str, int, float, bool or None, not PosixPath

[anudit]

Version Information

• Vyper Version: 0.4.0b5+commit.a9ee641
• OS: osx
• Python Version: Python 3.11.6

What's your issue about?

vyper -f combined_json contract.vy errors out with
TypeError: keys must be str, int, float, bool or None, not PosixPath

vyper -f abi contract.vy other formatters seem to work though.

Verbose logs

cli specified: `Settings(compiler_version=None, optimize=None, evm_version=None, experimental_codegen=None)`
Traceback (most recent call last):
  File "/opt/homebrew/bin/vyper", line 8, in <module>
    sys.exit(_parse_cli_args())
             ^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/lib/python3.11/site-packages/vyper/cli/vyper_compile.py", line 63, in _parse_cli_args
    return _parse_args(sys.argv[1:])
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/lib/python3.11/site-packages/vyper/cli/vyper_compile.py", line 211, in _parse_args
    _cli_helper(f, output_formats, compiled)
  File "/opt/homebrew/lib/python3.11/site-packages/vyper/cli/vyper_compile.py", line 68, in _cli_helper
    print(json.dumps(compiled), file=f)
          ^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/python@3.11/3.11.6_1/Frameworks/Python.framework/Versions/3.11/lib/python3.11/json/__init__.py", line 231, in dumps
    return _default_encoder.encode(obj)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/python@3.11/3.11.6_1/Frameworks/Python.framework/Versions/3.11/lib/python3.11/json/encoder.py", line 200, in encode
    chunks = self.iterencode(o, _one_shot=True)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/python@3.11/3.11.6_1/Frameworks/Python.framework/Versions/3.11/lib/python3.11/json/encoder.py", line 258, in iterencode
    return _iterencode(o, 0)
           ^^^^^^^^^^^^^^^^^
TypeError: keys must be str, int, float, bool or None, not PosixPath

Looks like it errors out on the json.dumps here

vyper/vyper/cli/vyper_compile.py

Line 68 in 4595938

print(json.dumps(compiled), file=f)

[anudit]

Changing

vyper/vyper/cli/vyper_compile.py

Line 315 in 4595938

ret[file_path] = output

to

ret[str(file_path)] = output

fixed it as PosixPaths as keys could not be serialized by json.dumps