Can't Concat Bytes to Str
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"...
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 <module>
f.write (plaintext + '\n')
TypeError: can't concat bytes to str
4 Answers
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')
subprocess.check_output() returns bytes.
so you need to convert '\n' to bytes as well:
f.write (plaintext + b'\n')
hope this helps
You can convert type of plaintext to string:
f.write(str(plaintext) + '\n')
f.write(plaintext)
f.write("\n".encode("utf-8"))
Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.
