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python-poetry
Interactive question fails in subcommand (poetry cache clear)
I'm facing an issue with poetry, but I believe it isn't poetry's fault. Environment is: python 3.8.10, poetry 1.2.0a2 and cleo 1.0.0a4.
Command poetry cache clear pypi --all -vvv crashes and gives following traceback:
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(temp) abs@abs-pc:~$ poetry cache clear pypi --all -vvv
Delete 318 entries? (yes/no) [no]
Stack trace:
13 venv/temp/lib/python3.8/site-packages/cleo/application.py:330 in run
328│
329│ try:
→ 330│ exit_code = self._run(io)
331│ except Exception as e:
332│ if not self._catch_exceptions:
12 venv/temp/lib/python3.8/site-packages/poetry/console/application.py:180 in _run
178│ self._load_plugins(io)
179│
→ 180│ return super()._run(io)
181│
182│ def _configure_io(self, io: IO) -> None:
11 venv/temp/lib/python3.8/site-packages/cleo/application.py:425 in _run
423│ io.set_input(ArgvInput(argv))
424│
→ 425│ exit_code = self._run_command(command, io)
426│ self._running_command = None
427│
10 venv/temp/lib/python3.8/site-packages/cleo/application.py:467 in _run_command
465│
466│ if error is not None:
→ 467│ raise error
468│
469│ return event.exit_code
9 venv/temp/lib/python3.8/site-packages/cleo/application.py:451 in _run_command
449│
450│ if event.command_should_run():
→ 451│ exit_code = command.run(io)
452│ else:
453│ exit_code = ConsoleCommandEvent.RETURN_CODE_DISABLED
8 venv/temp/lib/python3.8/site-packages/cleo/commands/base_command.py:118 in run
116│ io.input.validate()
117│
→ 118│ status_code = self.execute(io)
119│
120│ if status_code is None:
7 venv/temp/lib/python3.8/site-packages/cleo/commands/command.py:85 in execute
83│
84│ try:
→ 85│ return self.handle()
86│ except KeyboardInterrupt:
87│ return 1
6 venv/temp/lib/python3.8/site-packages/poetry/console/commands/cache/clear.py:58 in handle
56│ entries_count += len(files)
57│
→ 58│ delete = self.confirm(
59│ "Delete {} entries?".format(entries_count)
60│ )
5 venv/temp/lib/python3.8/site-packages/cleo/commands/command.py:143 in confirm
141│ )
142│
→ 143│ return question.ask(self._io)
144│
145│ def ask(
4 venv/temp/lib/python3.8/site-packages/cleo/ui/question.py:75 in ask
73│
74│ if not self._validator:
→ 75│ return self._do_ask(io)
76│
77│ def interviewer():
3 venv/temp/lib/python3.8/site-packages/cleo/ui/question.py:101 in _do_ask
99│
100│ if not ret:
→ 101│ ret = self._read_from_input(io)
102│ else:
103│ ret = self._autocomplete(io)
2 venv/temp/lib/python3.8/site-packages/cleo/ui/question.py:260 in _read_from_input
258│ Read user input.
259│ """
→ 260│ ret = io.read_line(4096)
261│
262│ if not ret:
1 venv/temp/lib/python3.8/site-packages/cleo/io/io.py:42 in read_line
40│ Reads a line from the input stream.
41│ """
→ 42│ return self._input.read_line(length=length, default=default)
43│
44│ def write_line(
AttributeError
'NoneType' object has no attribute 'readline'
at venv/temp/lib/python3.8/site-packages/cleo/io/inputs/input.py:77 in read_line
73│ """
74│ if not self._interactive:
75│ return default
76│
→ 77│ return self._stream.readline(length)
78│
79│ def close(self) -> None:
80│ """
81│ Closes the input.
My guess is that the problem is in cleo/application.py line 423: it sets a new input handler (instance of ArgvInput), which has no associated stream (thus the NoneType attribute error). The following patch is worked for me:
<<< application.py line 419 >>>
if index is not None:
del argv[index + 1 : index + 1 + (len(name.split(" ")) - 1)]
- io.set_input(ArgvInput(argv))
+ new_input = ArgvInput(argv)
+ new_input.set_stream(io.input.stream)
+ io.set_input(new_input)
exit_code = self._run_command(command, io)
self._running_command = None
<<< application.py line 427 >>>
