Invalid syntax on creating dynamic list

Question

I have a dict_name which is having values coming from the user.

dict_name = { 'filename' : 'abc.pdf' }

list_name = [f'<_io.BufferedReader name='D:\\test\\{filename}'>'] 

But this is giving me invalid syntax error.

Required:

 list_name = [<_io.BufferedReader name='D:\\test\\abc.pdf'>] 

Answer 1

You can't use nested single quotes. One approach is to use triple quotes:

filename = 'test'
list_name = [f'''<_io.BufferedReader name='D:\\test\\{filename}'>'''] 

output: ["<_io.BufferedReader name='D:\\test\\test'>"]

Or, to alternate single and double quotes:

list_name = [f"<_io.BufferedReader name='D:\\test\\{filename}'>"] 

Or, to escape the single quotes:

list_name = [f'<_io.BufferedReader name=\'D:\\test\\{filename}\'>'] 

after update of question

Given your update, you should do:

dict_name = { 'filename' : 'abc.pdf' }
f"<_io.BufferedReader name='D:\\test\\{dict_name['filename']}'>"