File path error handed over to stored in python

I'm a beginner at python.Thank you for your cooperation.

• I want to store sqlserver from python
• The stored argument is the file path

• Error specifying file path for argument
I somehow understand that the reason is that the \ in the
• path becomes \\, but
  I don't know how to solve it

input_file=r'C:\xxxx\ImportData\test.csv'
sql=f "usp_test {input_file}"
_cn.execute(sql)

 '42000', "[42000] [Microsoft] [ODBC SQL Server Driver] [SQL Server]'\\' Invalid syntax in neighborhood. (102) (SQLExecDirectW)"