How to clean UART string

[Joni_Engr]

Hi,

I am saving the UART data in the text file which appear as.

b' All is well '

How can I remove the b' in the start and ' at the end ?

[BashBedlam]

If what you want removed is always in the same position in the string, it is as simple as slicing the ends off like this:

uart_string = "b' All is well '"
output_string = uart_string [2: -1]
print (output_string)

Output:
 All is well

[buran]

>>> foo = b' All is well '
>>> foo.decode()
' All is well '
>>> str(foo, encoding='utf8')
' All is well '

bytes.decode() docs

[DeaD_EyE]

The b in front of the quotes tells Python that these are bytes.
If you don't assign the result to a name, the REPL prints the object in its representation form, which also includes the quotes.

If you decode the bytes to a str, then the quotes are only shown in representation (without the leading b).

If you print the resulting str, you won't see the quotes at the start and end of the str, but if you print bytes, then the representation is printed to console.

data = b"123" # bytes
print("bytes", data)
print("str", data.decode())

# decode without encoding, will use the system default encoding
# it's motsly everywhere uft8
# sometimes it's latin1 (in old Windows Terminal e.G.)

Output:
bytes b'123'
str 123

[deanhystad]

Why do you want to remove the b'' parts? If you want to save it as a string, why did you have it as bytes?