[Python] pip install issue with`json.decoder.JSONDecodeError: Expecting value: line 1 column 1...

I met some difficulties when I use 'pip install gradio''pip install -r requirements.txt' in Linux. I tried many ways, such as delete all '.cache', delete the virtual environment and reinstall the anaconda. But it doesn't work at all. The error is:

ERROR: Exception:
Traceback (most recent call last):
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/cli/base_command.py", line 106, in _run_wrapper
status = _inner_run()
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/cli/base_command.py", line 97, in _inner_run
return self.run(options, args)
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/cli/req_command.py", line 67, in wrapper
return func(self, options, args)
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/commands/install.py", line 386, in run
requirement_set = resolver.resolve(
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/resolution/resolvelib/resolver.py", line 95, in resolve
result = self._result = resolver.resolve(
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_vendor/resolvelib/resolvers.py", line 546, in resolve
state = resolution.resolve(requirements, max_rounds=max_rounds)
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_vendor/resolvelib/resolvers.py", line 427, in resolve
failure_causes = self._attempt_to_pin_criterion(name)
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_vendor/resolvelib/resolvers.py", line 239, in _attempt_to_pin_criterion
criteria = self._get_updated_criteria(candidate)
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_vendor/resolvelib/resolvers.py", line 230, in _get_updated_criteria
self._add_to_criteria(criteria, requirement, parent=candidate)
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_vendor/resolvelib/resolvers.py", line 173, in _add_to_criteria
if not criterion.candidates:
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_vendor/resolvelib/structs.py", line 156, in __bool__
return bool(self._sequence)
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 174, in __bool__
return any(self)
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 162, in <genexpr>
return (c for c in iterator if id(c) not in self._incompatible_ids)
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 49, in _iter_built
for version, func in infos:
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/resolution/resolvelib/factory.py", line 307, in iter_index_candidate_infos
result = self._finder.find_best_candidate(
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/index/package_finder.py", line 892, in find_best_candidate
candidates = self.find_all_candidates(project_name)
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/index/package_finder.py", line 833, in find_all_candidates
page_candidates = list(page_candidates_it)
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/index/sources.py", line 193, in page_candidates
yield from self._candidates_from_page(self._link)
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/index/package_finder.py", line 797, in process_project_url
page_links = list(parse_links(index_response))
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/index/collector.py", line 218, in wrapper_wrapper
return list(fn(page))
File "/home/miniconda3/envs/hawk/lib/python3.10/site-packages/pip/_internal/index/collector.py", line 231, in parse_links
data = json.loads(page.content)
File "/home/miniconda3/envs/hawk/lib/python3.10/json/__init__.py", line 346, in loads
return _default_decoder.decode(s)
File "/home/miniconda3/envs/hawk/lib/python3.10/json/decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/home/miniconda3/envs/hawk/lib/python3.10/json/decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)


Thank you!!!!

Continue reading...