While parsing a text file and doing some prints for debug purposes, the print stucks at a point but I didn't get any errors and the script seemed be running further. So I checked the file content and I recognised a rectangle character. I copied it to the python interpreter and the interpreter got stuck as well.
I checked on Unicode Lookup the character definition: osc operating system command and the unicode is \x9d. What does that mean?🤔
This is the character how it looks here:
Edit: After posting I recognised, that the character is invisible. So I did a screenshot from the editing view, so you see the character from the edit mode perspective.
dear fellow developers,
I have tried to teach python console to display ü, but it insists with displaying ü instead. I have tried it with Python 3.5 and Python 3.6. The result is the same. If I run a .py file containing line print("ü") with F5 command, it displays
ü
instead of ü. If I type in the console
print ("ü")
it displays
ü
I know it has been discussed many times, but most of the methods I have come across during the last 5 hours have not helped me or I have not applied them properly. The problem exists also with other non ascii characters. I appreciate your help!
Try adding the following line on the top on your source file : # coding: utf-8
Also, check if your file encoding is correct (Always choose UTF-8).
For a class of mine I have to make a very basic calculator. I want to write the code in such a way that the user can just enter what they want to do (ex. √64) press return and get the answer. I wrote this:
if '√' in operation:
squareRoot = operation.replace('√','')
squareRootFinal = math.sqrt(int(squareRoot))
When I run this in IDLE, it works like a charm. However when I run this in Terminal I get the following error:
SyntaxError: Non-ASCII character '\xe2' in file x.py on line 50, but no encoding declared;
any suggestions?
Just declare the encoding. Python is begin a bit cautious here and not guessing the encoding of your text file. IDLE is a text editor and so has already guessed the encoding and stored things internally as unicode, which it can pass directly to the Python interpreter.
Put
#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
at the top of the file. (It's pretty unlikely nowadays that your encoding is not UTF-8.)
For reference, in past times files had a variety of different possible encodings. That means that the same text could be stored in different ways in binary, when written to disk. Almost all encodings have the same interpretation of bytes 0 to 127—the ASCII subset. But if any other bytes occur in the file, their meaning is potentially ambiguous.
However, in recent years, UTF-8 has become by far the most common encoding, so it's almost always a safe guess.
My national language is Polish.
I've got program in Python 3.4 which I wrote on linux. This program mostly work on text, Polish text. So of course, variable names don't have any special characters, but sometimes I put into them some strings with Polish characters, user will input from keyboard some strings with Polish characters and My program read from files, where I got strings with Polish characters.
Everything work well on Linux. I didn't think about encoding, it just worked. But now i want to make it work on Windows. Can you help me understand, what I should actually do to make this transform?
Or maybe some workaround - I just need to have Windows executable file. Perfect way for this, would be "Pyinstaller", but it work only for python 2.7, not 3.4. That's why I want to make it working on Windows, and in VirtualBox with py2exe compile into executable form. But maybe somone know way for this in Linux, it without this encoding problems, it would be great.
If not, I back to my question. I tried to convert my python scripts in gedit into ISO or CP1250 or 1252, I wrote in the file headline what coding I'm using, it actually worked a little, now my windows error pint me into my files with text form which I read some data, so I converted them too... But it didn't work.
So I decided, that it's no more time for blind trials, and I need to ask for help, I need to understand what encoding is used on windows, which on linux, what is the best way to convert one into another, and how make program read characters in right way.
The best way would be - I guess - not changing anything in encoding, but just make windows python understand what encoding I'm using. Is that possible?
Complete answer for my question would be great, but anything what will point me in right direction will also help me a lot.
OK. I'm not sure, if I understand your answer in comments, but tried sending text for myself via mail, coping it in virtualbox into notepad and save as utf_8. Still get this message:
C:\Users\python\Documents>py pytania.py
Traceback (most recent call last):
File "pytania.py", line 864, in <module>
start_probny()
File "pytania.py", line 850, in start_probny
utworzenie_danych()
File "pytania.py", line 740, in utworzenie_danych
utworzenie_pytania_piwo('a')
File "pytania.py", line 367, in utworzenie_pytania_piwo
for line in f: # Czytam po jednej linii
File "C:\Python34\lib\encodings\cp1252.py", line 23, in decode
return codecs.charmap_decode(input,self.errors,decoding_table)[0]
UnicodeDecodeError: 'charmap' codec can't decode byte 0x9d in position 1134: cha
racter maps to <undefined>
As mentioned by Zero Piraeus in a comment: The default source encoding for Python 3.x is UTF-8, regardless of what platform it's running on...
If you have problems, that probably because your source code has incorrect encoding. You should stick to UTF-8 only (even though PEP 0263 -- Defining Python Source Code Encodings allows changing it).
The error message you provided is clear:
UnicodeDecodeError: 'charmap' codec can't decode byte 0x9d in position 1134
Python is currently expecting UTF8 (because "UnicodeDecodeError"!), but it encounters an illegal char (0x9d isn't a valid char is UTF8). To diagnose the problem, use iconv(1) on a Linux machine, to detect errors buy doing a dummy conversion:
iconv -f utf8 -t iso8859-2 -o /dev/null < test.py
You can try to reproduce the problem by creating a very simple python file, typically : print "test €uro encoding"
I extract unicode text from a website and do some printing that can contain non-ascii characters. Printing those raises a UnicodeEncodeError. How should I handle this case? I need a solution that requires minimum changes to the existing code.
I tried encoding the strings (by wrapping sys.stdout) with UTF-8, but then I get a TypeError since the original sys.stdout.write() method expects str not bytes.
I don't want the characters to be lost. The user may want to pipe the output into a file that would in this case be UTF8 formatted.
Edit: Setting PYTHONIOENCODING=utf8 can fix the problem, but isn't there a way I can "imitate" this behaviour in Python? Since utf8 doesn't match the Windows console encoding, some characters look strange. But this is by far better than a crash of the program.
Anyway to format the output from Python so I don't need to modify environment variables?