1.运行PyCharm时报错如下：

出现问题：ModuleNotFoundError: No module named 'utils’

1、（macos系统下）点击PyCharm -- Prefereces

2、点击Project:xxx -- Project Interpreter 后，点击+ 。（xxx为当前你的项目名称）

3、输入需要的模块名称查找，以utils 为例，点击utils后，点击install Package

在shell下运行python脚本报错：

出现问题：ModuleNotFoundError: No module named 'utils’

解决方法：

• python2安装

pip install web.py

• python3安装

pip install web.py==0.40-dev1

电脑python版本3.7，按照python3安装报错如下：（解决方案在后面）

ERROR: Exception:

Traceback (most recent call last):

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/urllib3/response.py", line 425, in _error_catcher

    yield

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/urllib3/response.py", line 507, in read

    data = self._fp.read(amt) if not fp_closed else b""

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/cachecontrol/filewrapper.py", line 62, in read

    data = self.__fp.read(amt)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py", line 447, in read

    n = self.readinto(b)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py", line 491, in readinto

    n = self.fp.readinto(b)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/socket.py", line 589, in readinto

    return self._sock.recv_into(b)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py", line 1049, in recv_into

    return self.read(nbytes, buffer)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py", line 908, 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 "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/cli/base_command.py", line 186, in _main

    status = self.run(options, args)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/commands/install.py", line 331, in run

    resolver.resolve(requirement_set)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/legacy_resolve.py", line 177, in resolve

    discovered_reqs.extend(self._resolve_one(requirement_set, req))

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/legacy_resolve.py", line 333, in _resolve_one

    abstract_dist = self._get_abstract_dist_for(req_to_install)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/legacy_resolve.py", line 282, in _get_abstract_dist_for

    abstract_dist = self.preparer.prepare_linked_requirement(req)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 482, in prepare_linked_requirement

    hashes=hashes,

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 287, in unpack_url

    hashes=hashes,

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 159, in unpack_http_url

    link, downloader, temp_dir.path, hashes

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 303, in _download_http_url

    for chunk in download.chunks:

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/utils/ui.py", line 160, in iter

    for x in it:

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/network/utils.py", line 39, in response_chunks

    decode_content=False,

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/urllib3/response.py", line 564, in stream

    data = self.read(amt=amt, decode_content=decode_content)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/urllib3/response.py", line 529, in read

    raise IncompleteRead(self._fp_bytes_read, self.length_remaining)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/contextlib.py", line 130, in __exit__

    self.gen.throw(type, value, traceback)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/urllib3/response.py", line 430, 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.

ERROR: Exception:
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/urllib3/response.py", line 425, in _error_catcher
    yield
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/urllib3/response.py", line 507, in read
    data = self._fp.read(amt) if not fp_closed else b""
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/cachecontrol/filewrapper.py", line 62, in read
    data = self.__fp.read(amt)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py", line 447, in read
    n = self.readinto(b)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py", line 491, in readinto
    n = self.fp.readinto(b)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/socket.py", line 589, in readinto
    return self._sock.recv_into(b)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py", line 1049, in recv_into
    return self.read(nbytes, buffer)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py", line 908, 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 "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/cli/base_command.py", line 186, in _main
    status = self.run(options, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/commands/install.py", line 331, in run
    resolver.resolve(requirement_set)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/legacy_resolve.py", line 177, in resolve
    discovered_reqs.extend(self._resolve_one(requirement_set, req))
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/legacy_resolve.py", line 333, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/legacy_resolve.py", line 282, in _get_abstract_dist_for
    abstract_dist = self.preparer.prepare_linked_requirement(req)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 482, in prepare_linked_requirement
    hashes=hashes,
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 287, in unpack_url
    hashes=hashes,
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 159, in unpack_http_url
    link, downloader, temp_dir.path, hashes
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 303, in _download_http_url
    for chunk in download.chunks:
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/utils/ui.py", line 160, in iter
    for x in it:
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_internal/network/utils.py", line 39, in response_chunks
    decode_content=False,
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/urllib3/response.py", line 564, in stream
    data = self.read(amt=amt, decode_content=decode_content)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/urllib3/response.py", line 529, in read
    raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/contextlib.py", line 130, in __exit__
    self.gen.throw(type, value, traceback)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/urllib3/response.py", line 430, 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.

于是尝试按照python2的安装，成功。

 

python库安装错误 in _error_catcher解决之镜像安装

pip install web.py==0.40-dev1

解决方案：pip install web.py==0.40-dev1 -i https://pypi.doubanio.com/simple

后面的-i https://pypi.doubanio.com/simple即是镜像

 

安装成功：