*Memos for a string and byte 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().
*Memos for a string and byte string(bytes and bytearray):
str.join() and bytes.join() or bytearray.join() can concatenate the zero or more characters of a string and byte string respectively with the zero or more characters of each string and byte string respectively of an iterable as shown below:
*Memos
- The 1st argument is
iterable(Required-Type:iterable(strforstr.join()or bytes-like object forbytes.join()andbytearray.join())). *Don't useiterable=.
<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
<Byte String>:
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')