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下载并安装python3.7版本:

安装python软件包:

打开 Qt Designer, 随便设计一个窗体:

根据 *.ui 生成 *.py 文件:

test2.py 最末添加:

在命令行运行:

完美:

源码下载: pywin_src.7z

mark, Python Qt5 学习中 ...

可以可以，最近也在玩这两个的组合

ERROR: Command errored out with exit status 2:
   command: 'd:\programs\python\python39-32\python.exe' 'd:\programs\python\python39-32\lib\site-packages\pip' install --ignore-installed --no-user --prefix 'C:\Users\xukaiming\AppData\Local\Temp\pip-build-env-jmcpx2b3\overlay' --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'sip >=5.3, <7' 'PyQt-builder >=1.1.0, <2'
       cwd: None
  Complete output (59 lines):
  Processing c:\users\xukaiming\appdata\local\pip\cache\wheels\b4\50\c9\930b84257dfd8f8d578b7e6f1325f57ed2457305a48c5c263e\sip-5.3.0-cp39-cp39-win32.whl
  Collecting PyQt-builder<2,>=1.1.0
    Downloading PyQt_builder-1.4.0-py3-none-any.whl (5.5 MB)
  ERROR: Exception:
  Traceback (most recent call last):
    File "d:\programs\python\python39-32\lib\site-packages\pip\_vendor\urllib3\response.py", line 437, in _error_catcher
      yield
    File "d:\programs\python\python39-32\lib\site-packages\pip\_vendor\urllib3\response.py", line 519, in read
      data = self._fp.read(amt) if not fp_closed else b""
    File "d:\programs\python\python39-32\lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 62, in read
      data = self.__fp.read(amt)
    File "d:\programs\python\python39-32\lib\http\client.py", line 458, in read
      n = self.readinto(b)
    File "d:\programs\python\python39-32\lib\http\client.py", line 502, in readinto
      n = self.fp.readinto(b)
    File "d:\programs\python\python39-32\lib\socket.py", line 704, in readinto
      return self._sock.recv_into(b)
    File "d:\programs\python\python39-32\lib\ssl.py", line 1241, in recv_into
      return self.read(nbytes, buffer)
    File "d:\programs\python\python39-32\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 "d:\programs\python\python39-32\lib\site-packages\pip\_internal\cli\base_command.py", line 216, in _main
      status = self.run(options, args)
    File "d:\programs\python\python39-32\lib\site-packages\pip\_internal\cli\req_command.py", line 182, in wrapper
      return func(self, options, args)
    File "d:\programs\python\python39-32\lib\site-packages\pip\_internal\commands\install.py", line 324, in run
      requirement_set = resolver.resolve(
    File "d:\programs\python\python39-32\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 183, in resolve
      discovered_reqs.extend(self._resolve_one(requirement_set, req))
    File "d:\programs\python\python39-32\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 388, in _resolve_one
      abstract_dist = self._get_abstract_dist_for(req_to_install)
    File "d:\programs\python\python39-32\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 340, in _get_abstract_dist_for
      abstract_dist = self.preparer.prepare_linked_requirement(req)
    File "d:\programs\python\python39-32\lib\site-packages\pip\_internal\operations\prepare.py", line 467, in prepare_linked_requirement
      local_file = unpack_url(
    File "d:\programs\python\python39-32\lib\site-packages\pip\_internal\operations\prepare.py", line 255, in unpack_url
      file = get_http_url(
    File "d:\programs\python\python39-32\lib\site-packages\pip\_internal\operations\prepare.py", line 129, in get_http_url
      from_path, content_type = _download_http_url(
    File "d:\programs\python\python39-32\lib\site-packages\pip\_internal\operations\prepare.py", line 282, in _download_http_url
      for chunk in download.chunks:
    File "d:\programs\python\python39-32\lib\site-packages\pip\_internal\cli\progress_bars.py", line 168, in iter
      for x in it:
    File "d:\programs\python\python39-32\lib\site-packages\pip\_internal\network\utils.py", line 64, in response_chunks
      for chunk in response.raw.stream(
    File "d:\programs\python\python39-32\lib\site-packages\pip\_vendor\urllib3\response.py", line 576, in stream
      data = self.read(amt=amt, decode_content=decode_content)
    File "d:\programs\python\python39-32\lib\site-packages\pip\_vendor\urllib3\response.py", line 541, in read
      raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
    File "d:\programs\python\python39-32\lib\contextlib.py", line 135, in __exit__
      self.gen.throw(type, value, traceback)
    File "d:\programs\python\python39-32\lib\site-packages\pip\_vendor\urllib3\response.py", line 442, 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: Command errored out with exit status 2: 'd:\programs\python\python39-32\python.exe' 'd:\programs\python\python39-32\lib\site-packages\pip' install --ignore-installed --no-user --prefix 'C:\Users\xukaiming\AppData\Local\Temp\pip-build-env-jmcpx2b3\overlay' --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'sip >=5.3, <7' 'PyQt-builder >=1.1.0, <2' Check the logs for full command output.

  socket.timeout: The read operation timed out

      raise ReadTimeoutError(self._pool, None, "Read timed out.")
  pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out.

貌似连不上服务器?