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+--- Thread: convert a character to numeric and back (/thread-24025.html)
convert a character to numeric and back - Skaperen - Jan-28-2020
if my function gets a single character that is str or bytes or bytearray, there is a simple way to convert its character code.
ord() works for all 5 types, so thats easy. going the other way has to be harder because of which type you want to go to. chr() get str.i want the same type as i originally had because this conversion is because i need to do changes to the character that are done as a numeric code. Unicode is not involved. all characters are ASCII only even for type str.
what's a good way to convert back to the original character type?
RE: convert a character to numeric and back - jfong - Jan-28-2020
The type info is lost after ord(). Can't get it back unless store it first.
t = type(c) n = ord(c)...later
try:
t(chr(n), encoding='utf8')
except TypeError:
chr(n)
RE: convert a character to numeric and back - Skaperen - Jan-28-2020
i still have the original value that was passed to ord(). or i could to t=type() as your code starts with.
unfortunately, the bytes() and bytearray() types as functions don't convert number the the ASCII character with that code. and if you use encoding= it expects a string argument (try it).
it looks like i'll need to do:
n=ord(c)
n=...n...
if t is str:
return chr(n)
if t in (bytes,bytearray):
return t([n])that's not bad.