[BUG] pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out.

**Describe the bug**
I typed "conda env create -f environment.yml " in cmd, the results are as shown below. What should I do next? Please teach me.

**To Reproduce**

```python
$ handson-ml2-master conda env create -f environment.yml
Collecting package metadata (repodata.json): ...working... done
Solving environment: ...working... done

Downloading and Extracting Packages
prometheus_client-0. | 47 KB | ########## | 100%
libtiff-4.3.0 | 1.1 MB | ########## | 100%
libwebp-base-1.2.1 | 393 KB | ########## | 100%
nest-asyncio-1.5.1 | 9 KB | ########## | 100%
jupyterlab_pygments- | 8 KB | ########## | 100%
attrs-20.3.0 | 41 KB | ########## | 100%
xorg-libxdmcp-1.1.3 | 66 KB | ########## | 100%
pcre-8.45 | 518 KB | ########## | 100%
libxgboost-1.4.2 | 2.1 MB | ########## | 100%
jupyter-1.0.0 | 6 KB | ########## | 100%
urllib3-1.26.7 | 100 KB | ########## | 100%
libiconv-1.16 | 680 KB | ########## | 100%
chardet-4.0.0 | 215 KB | ########## | 100%
tornado-6.1 | 653 KB | ########## | 100%
liblapack-3.9.0 | 4.5 MB | ########## | 100%
libsodium-1.0.18 | 697 KB | ########## | 100%
webencodings-0.5.1 | 12 KB | ########## | 100%
xorg-xproto-7.0.31 | 74 KB | ########## | 100%
lcms2-2.12 | 882 KB | ########## | 100%
jupyter_client-7.0.6 | 87 KB | ########## | 100%
lz4-c-1.9.3 | 135 KB | ########## | 100%
xorg-libx11-1.7.2 | 966 KB | ########## | 100%
freeglut-3.2.1 | 149 KB | ########## | 100%
pyqt5-sip-4.19.18 | 299 KB | ########## | 100%
typing-extensions-3. | 8 KB | ########## | 100%
backports-1.0 | 4 KB | ########## | 100%
box2d-py-2.3.8 | 503 KB | ########## | 100%
async_generator-1.10 | 18 KB | ########## | 100%
pytz-2021.3 | 242 KB | ########## | 100%
pyopengl-3.1.5 | 854 KB | ########## | 100%
qtconsole-5.2.0 | 90 KB | ########## | 100%
gitpython-3.1.24 | 122 KB | ########## | 100%
cycler-0.11.0 | 10 KB | ########## | 100%
nbconvert-6.3.0 | 607 KB | ########## | 100%
cryptography-35.0.0 | 1.1 MB | ########## | 100%
joblib-0.14.1 | 198 KB | ########## | 100%
python-3.8.12 | 19.2 MB | ########## | 100%
wheel-0.37.0 | 31 KB | ########## | 100%
python-graphviz-0.18 | 30 KB | ########## | 100%
libxml2-2.9.12 | 3.4 MB | ########## | 100%
jupyter_console-6.4. | 22 KB | ########## | 100%
xorg-libsm-1.2.3 | 96 KB | ########## | 100%
libopencv-4.5.3 | 46.8 MB | ########## | 100%
backcall-0.2.0 | 13 KB | ########## | 100%
entrypoints-0.3 | 8 KB | ########## | 100%
pywin32-302 | 6.9 MB | ########## | 100%
libglib-2.70.1 | 3.0 MB | ########## | 100%
packaging-20.9 | 35 KB | ########## | 100%
colorama-0.4.4 | 18 KB | ########## | 100%
ipywidgets-7.6.5 | 101 KB | ########## | 100%
xorg-kbproto-1.0.7 | 28 KB | ########## | 100%
typing_extensions-3. | 25 KB | ########## | 100%
defusedxml-0.7.1 | 23 KB | ########## | 100%
ffmpeg-4.3.1 | 26.2 MB | ########## | 100%
pyopenssl-21.0.0 | 48 KB | ########## | 100%
pip-21.3.1 | 1.2 MB | ########## | 100%
decorator-5.1.0 | 11 KB | ########## | 100%
python-dateutil-2.8. | 240 KB | ########## | 100%
pygments-2.10.0 | 760 KB | ########## | 100%
m2w64-libwinpthread- | 31 KB | ########## | 100%
matplotlib-base-3.4. | 7.2 MB | ########## | 100%
libcblas-3.9.0 | 4.5 MB | ########## | 100%
nltk-3.6.5 | 1.1 MB | ########## | 100%
zstd-1.5.0 | 1004 KB | ########## | 100%
regex-2021.11.10 | 353 KB | ########## | 100%
olefile-0.46 | 32 KB | ########## | 100%
jupyter_core-4.9.1 | 104 KB | ########## | 100%
matplotlib-3.4.3 | 8 KB | ########## | 100%
openssl-1.1.1l | 5.7 MB | ########## | 100%
nbdime-3.1.1 | 4.4 MB | ########## | 100%
widgetsnbextension-3 | 1.3 MB | ########## | 100%
charset-normalizer-2 | 32 KB | ########## | 100%
numexpr-2.7.3 | 132 KB | ########## | 100%
jupyter-server-mathj | 2.3 MB | ########## | 100%
jsonschema-4.2.1 | 118 KB | ########## | 100%
notebook-6.4.6 | 6.2 MB | ########## | 100%
mistune-0.8.4 | 55 KB | ########## | 100%
font-ttf-dejavu-sans | 388 KB | ########## | 100%
win_inet_pton-1.1.0 | 9 KB | ########## | 100%
_py-xgboost-mutex-2. | 11 KB | ########## | 100%
opencv-4.5.3 | 22 KB | ########## | 100%
libffi-3.4.2 | 41 KB | ########## | 100%
prompt_toolkit-3.0.2 | 5 KB | ########## | 100%
expat-2.4.1 | 279 KB | ########## | 100%
parso-0.8.2 | 68 KB | ########## | 100%
fonts-conda-ecosyste | 4 KB | ########## | 100%
icu-68.2 | 16.4 MB | ########## | 100%
libzlib-1.2.11 | 63 KB | ########## | 100%
jbig-2.1 | 45 KB | ########## | 100%
pandocfilters-1.5.0 | 11 KB | ########## | 100%
intel-openmp-2021.4. | 3.2 MB | ########## | 100%
pyparsing-3.0.6 | 79 KB | ########## | 100%
pthread-stubs-0.4 | 6 KB | ########## | 100%
pycparser-2.21 | 100 KB | ########## | 100%
py-opencv-4.5.3 | 24 KB | ########## | 100%
zlib-1.2.11 | 106 KB | ########## | 100%
certifi-2021.10.8 | 145 KB | ########## | 100%
winpty-0.4.3 | 1.1 MB | ########## | 100%
xorg-libxext-1.3.4 | 282 KB | ########## | 100%
scikit-learn-1.0.1 | 6.9 MB | ########## | 100%
pickleshare-0.7.5 | 9 KB | ########## | 100%
xorg-libice-1.0.10 | 181 KB | ########## | 100%
pyqtwebengine-5.12.1 | 143 KB | ########## | 100%
nbclient-0.5.8 | 64 KB | ########## | 100%
xorg-libxpm-3.5.13 | 236 KB | ########## | 100%
libdeflate-1.8 | 61 KB | ########## | 100%
terminado-0.12.1 | 28 KB | ########## | 100%
pango-1.48.10 | 735 KB | ########## | 100%
pillow-8.3.2 | 776 KB | ########## | 100%
qtpy-1.11.2 | 37 KB | ########## | 100%
argon2-cffi-21.1.0 | 50 KB | ########## | 100%
freetype-2.10.4 | 489 KB | ########## | 100%
ipython-7.28.0 | 1.2 MB | ########## | 100%
graphite2-1.3.13 | 97 KB | ########## | 100%
click-7.1.2 | 64 KB | ########## | 100%
fontconfig-2.13.1 | 1.7 MB | ########## | 100%
fonts-conda-forge-1 | 4 KB | ########## | 100%
libwebp-1.2.1 | 11 KB | ########## | 100%
xorg-xextproto-7.3.0 | 28 KB | ########## | 100%
jupyter_server-1.11. | 257 KB | ########## | 100%
zeromq-4.3.4 | 8.9 MB | ########## | 100%
getopt-win32-0.1 | 19 KB | ########## | 100%
brotlipy-0.7.0 | 369 KB | ########## | 100%
pyqt-impl-5.12.3 | 4.3 MB | ########## | 100%
sniffio-1.2.0 | 16 KB | ########## | 100%
mkl-2021.4.0 | 181.7 MB | ########## | 100%
libxcb-1.13 | 1.3 MB | ########## | 100%
markupsafe-2.0.1 | 25 KB | ########## | 100%
xz-5.2.5 | 211 KB | ########## | 100%
anyio-3.3.4 | 149 KB | ########## | 100%
libgd-2.3.3 | 459 KB | ########## | 100%
pandas-1.3.4 | 11.1 MB | ########## | 100%
future-0.18.2 | 734 KB | ########## | 100%
pyqtchart-5.12 | 208 KB | ########## | 100%
threadpoolctl-3.0.0 | 17 KB | ########## | 100%
jedi-0.18.1 | 994 KB | ########## | 100%
jpeg-9d | 366 KB | ########## | 100%
importlib_resources- | 21 KB | ########## | 100%
smmap-3.0.5 | 22 KB | ########## | 100%
font-ttf-source-code | 684 KB | ########## | 100%
openjpeg-2.4.0 | 238 KB | ########## | 100%
gitdb-4.0.9 | 46 KB | ########## | 100%
websocket-client-1.2 | 74 KB | ########## | 100%
pysocks-1.7.1 | 28 KB | ########## | 100%
m2w64-gmp-6.1.0 | 726 KB | ########## | 100%
tqdm-4.62.3 | 80 KB | ########## | 100%
qt-5.12.9 | 106.1 MB | ########## | 100%
m2w64-gcc-libgfortra | 342 KB | ########## | 100%
ipykernel-6.5.0 | 178 KB | ########## | 100%
setuptools-59.1.1 | 1020 KB | ########## | 100%
pyrsistent-0.18.0 | 86 KB | ########## | 100%
graphviz-2.49.3 | 1.1 MB | ########## | 100%
ucrt-10.0.20348.0 | 1.2 MB | ########## | 100%
libblas-3.9.0 | 4.5 MB | ########## | 100%
jupyterlab_widgets-1 | 130 KB | ########## | 100%
gettext-0.19.8.1 | 4.9 MB | ########## | 100%
tk-8.6.11 | 3.8 MB | ########## | 100%
python_abi-3.8 | 4 KB | ########## | 100%
six-1.15.0 | 14 KB | ########## | 100%
requests-2.26.0 | 52 KB | ########## | 100%
bleach-4.1.0 | 121 KB | ########## | 100%
m2w64-gcc-libs-5.3.0 | 520 KB | ########## | 100%
matplotlib-inline-0. | 11 KB | ########## | 100%
fribidi-1.0.10 | 63 KB | ########## | 100%
importlib-metadata-4 | 33 KB | ########## | 100%
gts-0.7.6 | 188 KB | ########## | 100%
liblapacke-3.9.0 | 4.5 MB | ########## | 100%
py-xgboost-1.4.2 | 141 KB | ########## | 100%
lerc-3.0 | 140 KB | ########## | 100%
libclang-11.1.0 | 20.8 MB | ########## | 100%
xorg-libxau-1.0.9 | 57 KB | ########## | 100%
vs2015_runtime-14.29 | 1.3 MB | ########## | 100%
pywinpty-1.1.6 | 185 KB | ########## | 100%
scipy-1.7.2 | 24.6 MB | ########## | 100%
ftfy-6.0.3 | 50 KB | ########## | 100%
ca-certificates-2021 | 176 KB | ########## | 100%
msys2-conda-epoch-20 | 3 KB | ########## | 100%
libpng-1.6.37 | 724 KB | ########## | 100%
libprotobuf-3.18.1 | 2.3 MB | ########## | 100%
testpath-0.5.0 | 86 KB | ########## | 100%
zipp-3.6.0 | 12 KB | ########## | 100%
sqlite-3.36.0 | 1.2 MB | ########## | 100%
vc-14.2 | 13 KB | ########## | 100%
numpy-1.19.5 | 4.9 MB | ########## | 100%
idna-3.1 | 52 KB | ########## | 100%
pixman-0.40.0 | 482 KB | ########## | 100%
pandoc-2.16.1 | 17.8 MB | ########## | 100%
font-ttf-inconsolata | 94 KB | ########## | 100%
kiwisolver-1.3.2 | 59 KB | ########## | 100%
xorg-libxt-1.2.1 | 811 KB | ########## | 100%
m2w64-gcc-libs-core- | 214 KB | ########## | 100%
pyglet-1.5.16 | 1.5 MB | ########## | 100%
jinja2-3.0.3 | 99 KB | ########## | 100%
prompt-toolkit-3.0.2 | 249 KB | ########## | 100%
debugpy-1.5.1 | 3.2 MB | ########## | 100%
cffi-1.15.0 | 229 KB | ########## | 100%
font-ttf-ubuntu-0.83 | 1.9 MB | ########## | 100%
jasper-2.0.33 | 677 KB | ########## | 100%
cairo-1.16.0 | 2.3 MB | ########## | 100%
pyqt-5.12.3 | 22 KB | ########## | 100%
tbb-2021.4.0 | 149 KB | ########## | 100%
send2trash-1.8.0 | 17 KB | ########## | 100%
pyzmq-22.3.0 | 463 KB | ########## | 100%
backports.functools_ | 9 KB | ########## | 100%
ipython_genutils-0.2 | 21 KB | ########## | 100%
traitlets-5.1.1 | 82 KB | ########## | 100%
harfbuzz-3.1.1 | 921 KB | ########## | 100%
wcwidth-0.2.5 | 33 KB | ########## | 100%
nbformat-5.1.3 | 47 KB | ########## | 100%
Preparing transaction: ...working... done
Verifying transaction: ...working... done
Executing transaction: ...working... Enabling notebook extension jupyter-js-widgets/extension...
- Validating: ok

done
Installing pip dependencies: ...working... Pip subprocess error:
ERROR: Exception:
Traceback (most recent call last):
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_vendor\urllib3\response.py", line 438, in _error_catcher
yield
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_vendor\urllib3\response.py", line 519, in read
data = self._fp.read(amt) if not fp_closed else b""
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 62, in read
data = self.__fp.read(amt)
File "C:\Users\thoma\.conda\envs\tf2\lib\http\client.py", line 459, in read
n = self.readinto(b)
File "C:\Users\thoma\.conda\envs\tf2\lib\http\client.py", line 503, in readinto
n = self.fp.readinto(b)
File "C:\Users\thoma\.conda\envs\tf2\lib\socket.py", line 669, in readinto
return self._sock.recv_into(b)
File "C:\Users\thoma\.conda\envs\tf2\lib\ssl.py", line 1241, in recv_into
return self.read(nbytes, buffer)
File "C:\Users\thoma\.conda\envs\tf2\lib\ssl.py", line 1099, in read
return self._sslobj.read(len, buffer)
socket.timeout: The read operation timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\cli\base_command.py", line 164, in exc_logging_wrapper
status = run_func(*args)
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\cli\req_command.py", line 205, in wrapper
return func(self, options, args)
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\commands\install.py", line 338, in run
requirement_set = resolver.resolve(
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\resolution\resolvelib\resolver.py", line 92, in resolve
result = self._result = resolver.resolve(
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 482, in resolve
state = resolution.resolve(requirements, max_rounds=max_rounds)
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 349, in resolve
self._add_to_criteria(self.state.criteria, r, parent=None)
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 173, in _add_to_criteria
if not criterion.candidates:
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_vendor\resolvelib\structs.py", line 151, in __bool__
return bool(self._sequence)
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 155, in __bool__
return any(self)
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 143, in
return (c for c in iterator if id(c) not in self._incompatible_ids)
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 47, in _iter_built
candidate = func()
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\resolution\resolvelib\factory.py", line 201, in _make_candidate_from_link
self._link_candidate_cache[link] = LinkCandidate(
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 281, in __init__
super().__init__(
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 156, in __init__
self.dist = self._prepare()
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 225, in _prepare
dist = self._prepare_distribution()
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 292, in _prepare_distribution
return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True)
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\operations\prepare.py", line 482, in prepare_linked_requirement
return self._prepare_linked_requirement(req, parallel_builds)
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\operations\prepare.py", line 527, in _prepare_linked_requirement
local_file = unpack_url(
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\operations\prepare.py", line 213, in unpack_url
file = get_http_url(
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\operations\prepare.py", line 94, in get_http_url
from_path, content_type = download(link, temp_dir.path)
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\network\download.py", line 145, in __call__
for chunk in chunks:
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\cli\progress_bars.py", line 144, in iter
for x in it:
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_internal\network\utils.py", line 63, in response_chunks
for chunk in response.raw.stream(
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_vendor\urllib3\response.py", line 576, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_vendor\urllib3\response.py", line 541, in read
raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
File "C:\Users\thoma\.conda\envs\tf2\lib\contextlib.py", line 131, in __exit__
self.gen.throw(type, value, traceback)
File "C:\Users\thoma\.conda\envs\tf2\lib\site-packages\pip\_vendor\urllib3\response.py", line 443, in _error_catcher
raise ReadTimeoutError(self._pool, None, "Read timed out.")
pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out.

Ran pip subprocess with arguments:
['C:\\Users\\thoma\\.conda\\envs\\tf2\\python.exe', '-m', 'pip', 'install', '-U', '-r', 'D:\\02.ѧϰ\\7.▒▒▒▒ѧϰ\\handson-ml2-master\\condaenv.v9zkfmbv.requirements.txt']
Pip subprocess output:
Collecting tensorboard-plugin-profile~=2.5.0
Downloading tensorboard_plugin_profile-2.5.0-py3-none-any.whl (1.1 MB)
Collecting tensorboard~=2.7.0
Downloading tensorboard-2.7.0-py3-none-any.whl (5.8 MB)
Collecting tensorflow-addons~=0.14.0
Downloading tensorflow_addons-0.14.0-cp38-cp38-win_amd64.whl (745 kB)
Collecting tensorflow-datasets~=4.4.0
Downloading tensorflow_datasets-4.4.0-py3-none-any.whl (4.0 MB)
Collecting tensorflow-hub~=0.12.0
Downloading tensorflow_hub-0.12.0-py2.py3-none-any.whl (108 kB)
Collecting tensorflow-probability~=0.14.1
Downloading tensorflow_probability-0.14.1-py2.py3-none-any.whl (5.7 MB)
Collecting tensorflow-serving-api~=2.6.0
Downloading tensorflow_serving_api-2.6.2-py2.py3-none-any.whl (37 kB)
Collecting tensorflow~=2.6.0
Downloading tensorflow-2.6.2-cp38-cp38-win_amd64.whl (423.3 MB)

failed

CondaEnvException: Pip failed

```

And if you got an exception, please copy the full stacktrace here:

```stacktrace
Traceback (most recent call last):
File "", line 1, in
File "", line 2, in inverse
ZeroDivisionError: division by zero
```

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**
If applicable, add screenshots to help explain your problem.