*Memo for string, bytes and bytearray functions:
- My post explains split().
- My post explains rsplit().
- My post explains splitlines().
- My post explains partition().
- My post explains rpartition().
*Memo for a string, bytes and bytearray:
str.join() and bytes.join() or bytearray.join() can concatenate the zero or more characters and bytes of the string and bytes or bytearray with the zero or more characters and bytes of each string and bytes or bytearray respectively of an iterable as shown below:
*Memo:
- The 1st argument is
iterable(Required-Type:Iterable(strforstr.join()or Bytes-like object forbytes.join()andbytearray.join())):- Don't use
iterable=.
- Don't use
<String>:
v = ['one', 'two', 'three', 'four'] print(''.join(v)) # onetwothreefour print(' '.join(v)) # one two three four print(' '.join(v)) # one two three four print('-'.join(v)) # one-two-three-four print(' - '.join(v)) # one - two - three - four print('<->'.join(v)) # one<->two<->three<->four v = ['', '', '', ''] print(''.join(v)) print(' '.join(v)) print(' '.join(v)) # Nothing print('-'.join(v)) # --- print(' - '.join(v)) # - - - print('<->'.join(v)) # <-><-><-> v = [] print('-'.join(v)) # Nothing v = [0, 12, 345, 6789] print(''.join(map(str, v))) print(''.join([str(num) for num in v])) # 0123456789 print('-'.join(map(str, v))) print('-'.join([str(num) for num in v])) # 0-12-345-6789 <Bytes & Bytearray>:
bytes:
v = [b'one', b'two', b'three', b'four'] v = [bytearray(b'one'), bytearray(b'two'), bytearray(b'three'), bytearray(b'four')] print(b''.join(v)) # b'onetwothreefour' print(b' '.join(v)) # b'one two three four' print(b' '.join(v)) # b'one two three four' print(b'-'.join(v)) # b'one-two-three-four' print(b' - '.join(v)) # b'one - two - three - four' print(b'<->'.join(v)) # b'one<->two<->three<->four' v = [b'', b'', b'', b''] v = [bytearray(b''), bytearray(b''), bytearray(b''), bytearray(b'')] print(b''.join(v)) # b'' print(b' '.join(v)) # b' ' print(b' '.join(v)) # b' ' print(b'-'.join(v)) # b'---' print(b' - '.join(v)) # b' - - - ' print(b'<->'.join(v)) # b'<-><-><->' v = [] print(b'-'.join(v)) # b'' v = [2, 4, 6] print(b''.join(map(bytes, v))) print(b''.join(map(bytearray, v))) print(b''.join([bytes(num) for num in v])) print(b''.join([bytearray(num) for num in v])) # b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' print(b'-'.join(map(bytes, v))) print(b'-'.join(map(bytearray, v))) print(b'-'.join([bytes(num) for num in v])) print(b'-'.join([bytearray(num) for num in v])) # b'\x00\x00-\x00\x00\x00\x00-\x00\x00\x00\x00\x00\x00' bytearray:
v = [b'one', b'two', b'three', b'four'] v = [bytearray(b'one'), bytearray(b'two'), bytearray(b'three') ,bytearray(b'four')] print(bytearray(b'').join(v)) # bytearray(b'onetwothreefour') print(bytearray(b' ').join(v)) # bytearray(b'one two three four') print(bytearray(b' ').join(v)) # bytearray(b'one two three four') print(bytearray(b'-').join(v)) # bytearray(b'one-two-three-four') print(bytearray(b' - ').join(v)) # bytearray(b'one - two - three - four') print(bytearray(b'<->').join(v)) # bytearray(b'one<->two<->three<->four') v = [b'', b'', b'', b''] v = [bytearray(b''), bytearray(b''), bytearray(b''), bytearray(b'')] print(bytearray(b'').join(v)) # bytearray(b'') print(bytearray(b' ').join(v)) # bytearray(b' ') print(bytearray(b' ').join(v)) # bytearray(b' ') print(bytearray(b'-').join(v)) # bytearray(b'---') print(bytearray(b' - ').join(v)) # bytearray(b' - - - ') print(bytearray(b'<->').join(v)) # bytearray(b'<-><-><->') v = [] print(bytearray(b'-').join(v)) # bytearray(b'') v = [2, 4, 6] print(bytearray(b'').join(map(bytes, v))) print(bytearray(b'').join(map(bytearray, v))) print(bytearray(b'').join([bytes(num) for num in v])) print(bytearray(b'').join([bytearray(num) for num in v])) # bytearray(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00') print(bytearray(b'-').join(map(bytes, v))) print(bytearray(b'-').join(map(bytearray, v))) print(bytearray(b'-').join([bytes(num) for num in v])) print(bytearray(b'-').join([bytearray(num) for num in v])) # bytearray(b'\x00\x00-\x00\x00\x00\x00-\x00\x00\x00\x00\x00\x00') 
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