我现在正忙着使用我们的构建脚本：我正在使用Waf来驱动我们的构建过程，一切都很好，除了Windows，我在这里遇到了间歇性的错误生成。
错误总是基本上是“访问被拒绝”的一种或另一种形式的错误，与我在构建过程中创建的临时文件相关，以使某些工具能够运行并完成它的工作。例如，在运行NSIS生成可执行安装程序之前，我必须将所有必需的文件“暂存”到构建目录并从那里运行命令。有时事情会按预期工作，但有时我会报告有关我复制的其中一个文件的错误，例如：
File: failed opening file "Platform\\Win32\\lxml-2.2.1-py2.6-win32.egg
我花了一个时间试图弄清楚问题是什么，但它真的很难，因为问题是间歇性的。我尝试的最后一件事是使用procmon监视文件系统访问以尝试跟踪导致访问错误的原因：我知道文件存在，所以必须是文件打开的东西。我在下面列出了相关的输出，因为我看不出有什么问题：Python似乎在NSIS想要打开它之前关闭文件但是NSIS失败了。任何人都可以对此有所了解吗？这个问题不是孤立于这种情况，而是与我生成子进程以处理我复制到构建目录的文件的其他情况......
7:35:15.9704427 PM python.exe 4968 QueryOpen ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg FAST IO DISALLOWED
7:35:15.9707497 PM python.exe 4968 CreateFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
7:35:15.9708634 PM python.exe 4968 QueryBasicInformationFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS CreationTime: 7/25/2009 7:35:11 PM, LastAccessTime: 7/25/2009 7:35:11 PM, LastWriteTime: 7/25/2009 7:35:11 PM, ChangeTime: 7/25/2009 7:35:11 PM, FileAttributes: A
7:35:15.9709271 PM python.exe 4968 CloseFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS
7:35:15.9785180 PM python.exe 4968 CreateFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS Desired Access: Write Attributes, Synchronize, Disposition: Open, Options: Synchronous IO Non-Alert, Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
7:35:15.9786119 PM python.exe 4968 SetBasicInformationFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS CreationTime: 1/1/1601 1:00:00 AM, LastAccessTime: 1/1/1601 1:00:00 AM, LastWriteTime: 1/1/1601 1:00:00 AM, ChangeTime: 1/1/1601 1:00:00 AM, FileAttributes: AN
7:35:15.9787155 PM python.exe 4968 CloseFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS
7:35:15.9789401 PM python.exe 4968 QueryOpen ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg FAST IO DISALLOWED
7:35:15.9790309 PM python.exe 4968 CreateFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
7:35:15.9790700 PM python.exe 4968 QueryBasicInformationFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS CreationTime: 7/25/2009 7:35:11 PM, LastAccessTime: 7/25/2009 7:35:11 PM, LastWriteTime: 7/25/2009 7:35:11 PM, ChangeTime: 7/25/2009 7:35:12 PM, FileAttributes: A
7:35:15.9790952 PM python.exe 4968 CloseFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS
7:35:15.9792809 PM python.exe 4968 CreateFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS Desired Access: Write Attributes, Synchronize, Disposition: Open, Options: Synchronous IO Non-Alert, Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
7:35:15.9793270 PM python.exe 4968 SetBasicInformationFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS CreationTime: 1/1/1601 1:00:00 AM, LastAccessTime: 1/1/1601 1:00:00 AM, LastWriteTime: 1/1/1601 1:00:00 AM, ChangeTime: 1/1/1601 1:00:00 AM, FileAttributes: AN
7:35:15.9794041 PM python.exe 4968 CloseFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS
7:35:16.3508170 PM makensis.exe 3296 CreateFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SHARING VIOLATION Desired Access: Generic Read, Disposition: Open, Options: Sequential Access, Synchronous IO Non-Alert, Non-Directory File, Attributes: N, ShareMode: Read, AllocationSize: n/a
7:35:16.3557763 PM python.exe 4968 QueryOpen ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg FAST IO DISALLOWED
7:35:16.3558928 PM python.exe 4968 CreateFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
7:35:16.3559461 PM python.exe 4968 QueryNetworkOpenInformationFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS CreationTime: 7/25/2009 7:35:11 PM, LastAccessTime: 7/25/2009 7:35:11 PM, LastWriteTime: 7/25/2009 7:35:11 PM, ChangeTime: 7/25/2009 7:35:12 PM, AllocationSize: 1/1/1601 1:00:00 AM, EndOfFile: 1/1/1601 1:00:00 AM, FileAttributes: A
7:35:16.3560121 PM python.exe 4968 CloseFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS
7:35:16.3562048 PM python.exe 4968 CreateFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SHARING VIOLATION Desired Access: Read Attributes, Delete, Disposition: Open, Options: Non-Directory File, Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a
7:35:21.9320579 PM python.exe 3160 CloseFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS
答案 0 :(得分：3)
在该跟踪中，跟踪开始时文件已存在。所以其他东西可能会让它保持打开状态（例如病毒扫描程序或索引服务）。