老师你好，我是跟着视频一步一步来，在使用 toolbar = DebugToolbarExtension( app ) 之前都一切正常，使用这个DebugTool后 就报错；我win7系统的环境变量python是E盘下；但我把代码拷贝到E盘下去运行，也还是同样的错误。

{environ({‘NUMBER_OF_PROCESSORS’: ‘4’, ‘DOCKER_HOST’: ‘tcp://192.168.99.100:2376’, ‘OPS_CONFIG’: ‘local’, ‘PATH’: ‘C:\Windows\sys
tem32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;E:\python;E:\python\Scripts;E:\
python\Scripts\;E:\python\;E:\python\Scripts;E:\Fiddler;E:\DockerToolbox\Docker Toolbox’, ‘PROMPT’: ‘$P$G’, ‘SESSIONNAME’
: ‘Console’, ‘PROCESSOR_IDENTIFIER’: ‘Intel64 Family 6 Model 78 Stepping 3, GenuineIntel’, ‘TERMINAL_EMULATOR’: ‘JetBrains-JediTer
m’, ‘VBOX_MSI_INSTALL_PATH’: ‘C:\Program Files\Oracle\VirtualBox\’, ‘INTELLIJ_COMMAND_HISTFILE’: ‘C:\Users\Administrator
\.PyCharmCE2019.3\config\terminal\history\history-2’, ‘SYSTEMDRIVE’: ‘C:’, ‘LOGONSERVER’: ‘\\USER-20191209RM’, ‘USERDOMAIN’
: ‘USER-20191209RM’, ‘PROGRAMW6432’: ‘C:\Program Files’, ‘HOMEPATH’: ‘\Users\Administrator’, ‘NO_PROXY’: ‘192.168.99.100’, ‘USE
RPROFILE’: ‘C:\Users\Administrator’, ‘IDEA_INITIAL_DIRECTORY’: ‘E:\pycharm\PyCharm Community Edition 2019.3\bin’, ‘USERNAME’:
‘Administrator’, ‘PROGRAMFILES’: ‘C:\Program Files’, ‘USERDOMAIN_ROAMINGPROFILE’: ‘USER-20191209RM’, ‘COMMONPROGRAMFILES(X86)’:
‘C:\Program Files (x86)\Common Files’, ‘LOCALAPPDATA’: ‘C:\Users\Administrator\AppData\Local’, ‘DOCKER_CERT_PATH’: ‘C:\User
s\Administrator\.docker\machine\machines\default’, ‘DOCKER_TOOLBOX_INSTALL_PATH’: ‘E:\DockerToolbox\Docker Toolbox’, ‘WINDO
WS_TRACING_FLAGS’: ‘3’, ‘TMP’: ‘C:\Users\ADMINI~1\AppData\Local\Temp’, ‘DOCKER_MACHINE_NAME’: ‘default’, ‘APPDATA’: ‘C:\User
s\Administrator\AppData\Roaming’, ‘HOMEDRIVE’: ‘C:’, ‘ALLUSERSPROFILE’: ‘C:\ProgramData’, ‘FP_NO_HOST_CHECK’: ‘NO’, ‘OS’: ‘Win
dows_NT’, ‘PROCESSOR_LEVEL’: ‘6’, ‘PROGRAMDATA’: ‘C:\ProgramData’, ‘COMSPEC’: ‘C:\Windows\system32\cmd.exe’, ‘PROCESSOR_ARCHIT
ECTURE’: ‘AMD64’, ‘SYSTEMROOT’: ‘C:\Windows’, ‘COMMONPROGRAMFILES’: ‘C:\Program Files\Common Files’, ‘TEMP’: ‘C:\Users\ADMINI
~1\AppData\Local\Temp’, ‘PSMODULEPATH’: ‘C:\Windows\system32\WindowsPowerShell\v1.0\Modules\’, ‘COMPUTERNAME’: ‘USER-2019
1209RM’, ‘PATHEXT’: ‘.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC’, ‘PROGRAMFILES(X86)’: ‘C:\Program Files (x86)’, ‘COMP
OSE_CONVERT_WINDOWS_PATHS’: ‘true’, ‘PROCESSOR_REVISION’: ‘4e03’, ‘_DFX_INSTALL_UNSIGNED_DRIVER’: ‘1’, ‘WINDIR’: ‘C:\Windows’, ‘P
UBLIC’: ‘C:\Users\Public’, ‘DOCKER_TLS_VERIFY’: ‘1’, ‘WINDOWS_TRACING_LOGFILE’: ‘C:\BVTBin\Tests\installpackage\csilogfile.l
og’, ‘COMMONPROGRAMW6432’: ‘C:\Program Files\Common Files’, ‘WERKZEUG_RUN_MAIN’: ‘true’})
}