我继续得到错误 没有名为“ requests”的模块 在Python中。我已经安装了请求，但是与终端检查时似乎出现了一些问题。我不明白，有人可以帮忙吗？
pip3 install requests
Requirement already satisfied: requests in /anaconda3/lib/python3.6/site-packages (2.19.1)
Requirement already satisfied: idna<2.8,>=2.5 in /anaconda3/lib/python3.6/site-packages (from requests) (2.7)
Requirement already satisfied: urllib3<1.24,>=1.21.1 in /anaconda3/lib/python3.6/site-packages (from requests) (1.23)
Requirement already satisfied: certifi>=2017.4.17 in /anaconda3/lib/python3.6/site-packages (from requests) (2018.8.24)
Requirement already satisfied: chardet<3.1.0,>=3.0.2 in /anaconda3/lib/python3.6/site-packages (from requests) (3.0.4)
Exception:
Traceback (most recent call last):
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2862, in _dep_map
return self.__dep_map
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2669, in __getattr__
raise AttributeError(attr)
AttributeError: _DistInfoDistribution__dep_map
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/packaging/requirements.py", line 93, in __init__
req = REQUIREMENT.parseString(requirement_string)
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pyparsing.py", line 1632, in parseString
raise exc
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pyparsing.py", line 1622, in parseString
loc, tokens = self._parse( instring, 0 )
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pyparsing.py", line 1379, in _parseNoCache
loc,tokens = self.parseImpl( instring, preloc, doActions )
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pyparsing.py", line 3395, in parseImpl
loc, exprtokens = e._parse( instring, loc, doActions )
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pyparsing.py", line 1383, in _parseNoCache
loc,tokens = self.parseImpl( instring, preloc, doActions )
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pyparsing.py", line 3183, in parseImpl
raise ParseException(instring, loc, self.errmsg, self)
pip._vendor.pyparsing.ParseException: Expected stringEnd (at char 33), (line:1, col:34)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2942, in __init__
super(Requirement, self).__init__(requirement_string)
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/packaging/requirements.py", line 97, in __init__
requirement_string[e.loc:e.loc + 8]))
pip._vendor.packaging.requirements.InvalidRequirement: Invalid requirement, parse error at "'; extra '"
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/anaconda3/lib/python3.6/site-packages/pip/_internal/basecommand.py", line 228, in main
status = self.run(options, args)
File "/anaconda3/lib/python3.6/site-packages/pip/_internal/commands/install.py", line 318, in run
self._warn_about_conflicts(to_install)
File "/anaconda3/lib/python3.6/site-packages/pip/_internal/commands/install.py", line 442, in _warn_about_conflicts
package_set, _dep_info = check_install_conflicts(to_install)
File "/anaconda3/lib/python3.6/site-packages/pip/_internal/operations/check.py", line 89, in check_install_conflicts
state = create_package_set_from_installed()
File "/anaconda3/lib/python3.6/site-packages/pip/_internal/operations/check.py", line 39, in create_package_set_from_installed
retval[name] = PackageDetails(dist.version, dist.requires())
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2613, in requires
dm = self._dep_map
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2864, in _dep_map
self.__dep_map = self._compute_dependencies()
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2874, in _compute_dependencies
reqs.extend(parse_requirements(req))
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2935, in parse_requirements
yield Requirement(line)
File "/anaconda3/lib/python3.6/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2944, in __init__
raise RequirementParseError(str(e))
pip._vendor.pkg_resources.RequirementParseError: Invalid requirement, parse error at "'; extra '"