问题一：1、在使用pip20.0.2时出现以下问题,可能是由于更新了所有的包出现的
Traceback (most recent call last):
File "C:\Users\user\Anaconda3\Scripts\pip-script.py", line 11, in
load_entry_point('pip==20.0.2', 'console_scripts', 'pip')()
File "C:\Users\user\Anaconda3\lib\site-packages\pip_internal\cli\main.py", line 73, in main
command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
File "C:\Users\user\Anaconda3\lib\site-packages\pip_internal\commands__init__.py", line 96, in create_command
module = importlib.import_module(module_path)
File "C:\Users\user\Anaconda3\lib\importlib__init__.py", line 127, in import_module
return bootstrap._gcd_import(name[level:], package, level)
File "", line 1006, in _gcd_import
File "", line 983, in _find_and_load
File "", line 967, in _find_and_load_unlocked
File "", line 677, in _load_unlocked
File "", line 728, in exec_module
File "", line 219, in _call_with_frames_removed
File "C:\Users\user\Anaconda3\lib\site-packages\pip_internal\commands\uninstall.py", line 9, in
from pip._internal.cli.req_command import SessionCommandMixin
File "C:\Users\user\Anaconda3\lib\site-packages\pip_internal\cli\req_command.py", line 15, in
from pip._internal.index.package_finder import PackageFinder
File "C:\Users\user\Anaconda3\lib\site-packages\pip_internal\index\package_finder.py", line 21, in
from pip._internal.index.collector import parse_links
File "C:\Users\user\Anaconda3\lib\site-packages\pip_internal\index\collector.py", line 12, in
from pip._vendor import html5lib, requests
File "C:\Users\user\Anaconda3\lib\site-packages\pip_vendor\requests\_init__.py", line 44, in
from pip._vendor import chardet
File "C:\Users\user\Anaconda3\lib\site-packages\pip_vendor\chardet__init__.py", line 20, in
from .universaldetector import UniversalDetector
File "C:\Users\xuning\Anaconda3\lib\site-packages\pip_vendor\chardet\universaldetector.py", line 48, in
from .sbcsgroupprober import SBCSGroupProber
File "C:\Users\user\Anaconda3\lib\site-packages\pip_vendor\chardet\sbcsgroupprober.py", line 37, in
from .langthaimodel import TIS620ThaiModel
ImportError: cannot import name 'TIS620ThaiModel' from 'pip._vendor.chardet.langthaimodel' (C:\Users\xuning\Anaconda3\lib\site-packages\pip_vendor\chardet\langthaimodel.py)
问题2、调用sklearn时出现以下问题
Traceback (most recent call last):
File "C:/Users/user/PycharmProjects/machine learning/8.4cluster.py", line 1, in
from sklearn.datasets import load_iris
File "C:\Users\user\Anaconda3\lib\site-packages\sklearn\datasets__init__.py", line 22, in
from .twenty_newsgroups import fetch_20newsgroups
File "C:\Users\user\Anaconda3\lib\site-packages\sklearn\datasets\twenty_newsgroups.py", line 44, in
from ..feature_extraction.text import CountVectorizer
File "C:\Users\user\Anaconda3\lib\site-packages\sklearn\feature_extraction__init__.py", line 10, in
from . import text
File "C:\Users\user\Anaconda3\lib\site-packages\sklearn\feature_extraction\text.py", line 28, in
from ..preprocessing import normalize
File "C:\Users\user\Anaconda3\lib\site-packages\sklearn\preprocessing__init__.py", line 6, in
from ._function_transformer import FunctionTransformer
File "C:\Users\user\Anaconda3\lib\site-packages\sklearn\preprocessing_function_transformer.py", line 5, in
from ..utils.testing import assert_allclose_dense_sparse
File "C:\Users\user\Anaconda3\lib\site-packages\sklearn\utils\testing.py", line 720, in
skip_if_32bit = pytest.mark.skipif(_IS_32BIT,
AttributeError: module 'pytest' has no attribute 'mark'