*Memo for string, bytes and bytearray functions:
- My post explains removeprefix() and removesuffix().
- My post explains startswith().
- My post explains endswith().
*Memo for a string, bytes and bytearray:
str.replace() and bytes.replace() or bytearray.replace() can replace the zero or more substrings and byte substrings respectively matched to old with new from the left to the right as shown below:
*Memo:
- The 1st argument is
old(Required-Type:strforstr.replace()or Bytes-like object forbytes.replace()andbytearray.replace()):- It's the substring and byte substring of the zero or more characters and bytes replaced with
newrespectively. - Don't use
old=.
- It's the substring and byte substring of the zero or more characters and bytes replaced with
- The 2nd argument is
new(Required-Type:strforstr.replace()or Bytes-like object forbytes.replace()andbytearray.replace()):- It's the substring and byte substring of the zero or more characters and bytes replacing
oldrespectively. - Don't use
old=.
- It's the substring and byte substring of the zero or more characters and bytes replacing
- The 3rd argument is
count(Optional-Default:-1-Type:int):- It decides how many matched substrings and byte substrings are replaced respectively.
- If it's
-1, alloldsubstrings and byte substrings are replaced respectively. - Don't use
count=.
<String>:
v = "It's very very good" print(v.replace('er', 'ER')) print(v.replace('er', 'ER', -1)) print(v.replace('er', 'ER', 2)) # It's vERy vERy good print(v.replace('er', 'ER', 1)) # It's vERy very good print(v.replace('very', 'VERY')) print(v.replace('very', 'VERY', 2)) # It's VERY VERY good print(v.replace('very', 'VERY', 1)) # It's VERY very good print(v.replace('', '--')) # --I--t--'--s-- --v--e--r--y-- --v--e--r--y-- --g--o--o--d-- # ↓↓ print(v.replace('', ' ')) # I t ' s v e r y v e r y g o o d # ↓ ↓↓ print(v.replace(' ', ' ')) # It's very very good # ↓↓ ↓↓ print(v.replace(' ', ' ')) print(v.replace('', '')) print(v.replace('er', 'ER', 0)) print(v.replace('very', 'VERY', 0)) print(v.replace('ER', 'ER')) print(v.replace('VERY', 'VERY')) print(v.replace('really', 'VERY')) # It's very very good <Bytes & Bytearray>:
bytes:
v = b"It's very very good" print(v.replace(b'er', b'ER')) print(v.replace(bytearray(b'er'), bytearray(b'ER'))) print(v.replace(b'er', b'ER', -1)) print(v.replace(bytearray(b'er'), bytearray(b'ER'), -1)) print(v.replace(b'er', b'ER', 2)) print(v.replace(bytearray(b'er'), bytearray(b'ER'), 2)) # b"It's vERy vERy good" print(v.replace(b'er', b'ER', 1)) print(v.replace(bytearray(b'er'), bytearray(b'ER'), 1)) # b"It's vERy very good" print(v.replace(b'very', b'VERY')) print(v.replace(bytearray(b'very'), bytearray(b'VERY'))) print(v.replace(b'very', b'VERY', 2)) print(v.replace(bytearray(b'very'), bytearray(b'VERY'), 2)) # b"It's VERY VERY good" print(v.replace(b'very', b'VERY', 1)) print(v.replace(bytearray(b'very'), bytearray(b'VERY'), 1)) # b"It's VERY very good" print(v.replace(b'', b'--')) print(v.replace(bytearray(b''), bytearray(b'--'))) # b"--I--t--'--s-- --v--e--r--y-- --v--e--r--y-- --g--o--o--d--" # ↓↓ print(v.replace(b'', b' ')) print(v.replace(bytearray(b''), bytearray(b' '))) # b" I t ' s v e r y v e r y g o o d " # ↓ ↓↓ print(v.replace(b' ', b' ')) print(v.replace(bytearray(b' '), bytearray(b' '))) # b"It's very very good" # ↓↓ ↓↓ print(v.replace(b' ', b' ')) print(v.replace(bytearray(b' '), bytearray(b' '))) print(v.replace(b'', b'')) print(v.replace(bytearray(b''), bytearray(b''))) print(v.replace(b'er', b'ER', 0)) print(v.replace(bytearray(b'er'), bytearray(b'ER'), 0)) print(v.replace(b'very', b'VERY', 0)) print(v.replace(bytearray(b'very'), bytearray(b'VERY'), 0)) print(v.replace(b'ER', b'ER')) print(v.replace(bytearray(b'ER'), bytearray(b'ER'))) print(v.replace(b'VERY', b'VERY')) print(v.replace(bytearray(b'VERY'), bytearray(b'VERY'))) print(v.replace(b'really', b'VERY')) print(v.replace(bytearray(b'really'), bytearray(b'VERY'))) # b"It's very very good" bytearray:
v = bytearray(b"It's very very good") print(v.replace(b'er', b'ER')) print(v.replace(bytearray(b'er'), bytearray(b'ER'))) print(v.replace(b'er', b'ER', -1)) print(v.replace(bytearray(b'er'), bytearray(b'ER'), -1)) print(v.replace(b'er', b'ER', 2)) print(v.replace(bytearray(b'er'), bytearray(b'ER'), 2)) # bytearray(b"It\'s vERy vERy good") print(v.replace(b'er', b'ER', 1)) print(v.replace(bytearray(b'er'), bytearray(b'ER'), 1)) # bytearray(b"It\'s vERy very good") print(v.replace(b'very', b'VERY')) print(v.replace(bytearray(b'very'), bytearray(b'VERY'))) print(v.replace(b'very', b'VERY', 2)) print(v.replace(bytearray(b'very'), bytearray(b'VERY'), 2)) # bytearray(b"It\'s VERY VERY good") print(v.replace(b'very', b'VERY', 1)) print(v.replace(bytearray(b'very'), bytearray(b'VERY'), 1)) # bytearray(b"It\'s VERY very good") print(v.replace(b'', b'--')) print(v.replace(bytearray(b''), bytearray(b'--'))) # bytearray(b"--I--t--\'--s-- --v--e--r--y-- --v--e--r--y-- --g--o--o--d--") # ↓↓ print(v.replace(b'', b' ')) print(v.replace(bytearray(b''), bytearray(b' '))) # bytearray(b" I t \' s v e r y v e r y g o o d ") # ↓ ↓↓ print(v.replace(b' ', b' ')) print(v.replace(bytearray(b' '), bytearray(b' '))) # bytearray(b"It\'s very very good") # ↓↓ ↓↓ print(v.replace(b' ', b' ')) print(v.replace(bytearray(b' '), bytearray(b' '))) print(v.replace(b'', b'')) print(v.replace(bytearray(b''), bytearray(b''))) print(v.replace(b'er', b'ER', 0)) print(v.replace(bytearray(b'er'), bytearray(b'ER'), 0)) print(v.replace(b'very', b'VERY', 0)) print(v.replace(bytearray(b'very'), bytearray(b'VERY'), 0)) print(v.replace(b'ER', b'ER')) print(v.replace(bytearray(b'ER'), bytearray(b'ER'))) print(v.replace(b'VERY', b'VERY')) print(v.replace(bytearray(b'VERY'), bytearray(b'VERY'))) print(v.replace(b'really', b'VERY')) print(v.replace(bytearray(b'really'), bytearray(b'VERY'))) # bytearray(b"It\'s very very good") 
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