Reason: Window can read files with \, but in the string \ is used as an escape character, after the escape may not find the path of the resource, for example \t will be escaped as tab key

Upper Code:

>>> def func1(path_name):
...     import os
...     if os.path.exists(path_name):
...         return "True"
...     else:
...         return "False"
...
>>> func1("C:\Users\renyc")#error
  File "<stdin>", line 1
SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UXXXXXXXX escape
>>>

In this example: "C:\Users\renyc" is escaped and the resource of the path is not found.

Solution:

>>> def func1(path_name):
...     import os
...     if os.path.exists(path_name):
...         return "True"
...     else:
...         return "False"
...
>>> func1(r"C:\Users\renyc")#Add r to declare the string without escaping
'True'
>>> func1("C:\\Users\\\renyc")# handling of absolute paths
'True'
>>>

There are three ways to summarize.

One:Replace the write method with an absolute path func1(“C:\Users\renyc”)

Two: explicitly declare the string without escaping (add r) func1(r “C:\Users\renyc”)

III:Use Linux paths/ func1(“C:/Users/renyc”)