Maya Python calls the Maya window to select files

If you need to call some external files or export files in the script, you need to get the file path, etc., you need to open the file selection window. This describes how to call the Maya window to select the file and get the file path

Related documents

Document: http://help.autodesk.com/view/MAYAUL/2019/CHS/?guid=__CommandsPython_index_html , select fileMode

Official routine

import maya.cmds as cmds

basicFilter = "*.mb"
cmds.fileDialog2(fileFilter=basicFilter, dialogStyle=2)

singleFilter = "All Files (*.*)"
cmds.fileDialog2(fileFilter=singleFilter, dialogStyle=2)

multipleFilters = "Maya Files (*.ma *.mb);;Maya ASCII (*.ma);;Maya Binary (*.mb);;All Files (*.*)"
cmds.fileDialog2(fileFilter=multipleFilters, dialogStyle=2)

My use

There are two types in the document, fileDialog and fileDialog2, and fileDialog2 is used here

as follows

import maya.cmds as cmds 
basicFilter = "*.txt"
path = cmds.fileDialog2(fileFilter=basicFilter, dialogStyle=2, fileMode=0)
print path

https://blog.csdn.net/shaynerain/article/details/106426818