circle.py示例的Python FiPy执行错误

Question

在Windows10上，我使用当前的FiPy版本3.4.2.1运行Python3.7。

如果我运行circle.py，我会得到：

  Traceback (most recent call last):
  File "circle.py", line 182, in <module>
    exec(fipy.tests.doctestPlus._getScript())
  File "<string>", line 39, in <module>
  File "C:\python37\lib\site-packages\fipy\meshes\gmshMesh.py", line 1601, in __init__
    background=background)
  File "C:\python37\lib\site-packages\fipy\meshes\gmshMesh.py", line 137, in openMSHFile
    raise EnvironmentError("Gmsh version must be >= 2.0.")
OSError: Gmsh version must be >= 2.0.

gmsh的版本是4.7.1。检查C:\python37\lib\site-packages\fipy\meshes\gmshMesh.py中发生的情况会发现，命令version = _gmshVersion(communicator=communicator)会导致'0.0'。所以我“黑”掉了代码，忽略了版本。

现在我得到了错误：

Traceback (most recent call last):
  File "circle.py", line 182, in <module>
    exec(fipy.tests.doctestPlus._getScript())
  File "<string>", line 39, in <module>
  File "C:\python37\lib\site-packages\fipy\meshes\gmshMesh.py", line 1602, in __init__
    background=background)
  File "C:\python37\lib\site-packages\fipy\meshes\gmshMesh.py", line 220, in openMSHFile
    stdout=PIPE)
  File "C:\python37\lib\subprocess.py", line 800, in __init__
    restore_signals, start_new_session)
  File "C:\python37\lib\subprocess.py", line 1207, in _execute_child
    startupinfo)
FileNotFoundError: [WinError 2] Das System kann die angegebene Datei nicht finden

大约:系统找不到请求的文件

现在我迷路了。这是怎么回事？

Answer 1

好吧，我错过了gmsh是一个外部软件，必须单独安装。

这样做之后，所有的运行都是完美的。