Can t concat bytes to str

Question

This is proving to be a rough transition over to python  What is going on here    f   open   myfile    a     f write  test string      n    key    pass hello  plaintext   subprocess check output   openssl    aes-128-cbc    -d    -in   test   -base64    -pass   key   print  plaintext   f write  plaintext     n   f close     The output file looks like   test string  and then I get this error   b decryption successful n  Traceback  most recent call last     File      Project py   line 36  in  lt module gt      f write  plaintext     n   TypeError  can t concat bytes to str

User · Answer

You can convert type of plaintext to string   f write str plaintext      n

User · Answer

f write plaintext  f write  quot  n quot  encode  quot utf-8 quot

User · Answer

subprocess check output   returns bytes   so you need to convert   n  to bytes as well    f write  plaintext   b  n     hope this helps

User · Answer

subprocess check output   returns a bytestring    In Python 3  there s no implicit conversion between unicode  str  objects and bytes objects  If you know the encoding of the output  you can  decode   it to get a string  or you can turn the  n you want to add to bytes with   n  encode  ascii

[python] Can't concat bytes to str

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