why does the IDLE interprets and renders Tamil unicode characters improperly? - python

I have installed IDLE 3.4.0 on Ubuntu 14.04 and that works fine for English. I tried to print Tamil Unicode characters:
#!/usr/bin/env python
# -*- coding: UTF-8 -*-
print ('\u0B85')
print('\u0BA4\u0BC1')
Which I thought would print Tamil unicode equivalent characters 'அ
' 'து'. I got the first one printed correctly but not the second one.
So I got output like this in here http://imgur.com/87y1jWE , I want to print them as I mentioned above without any crash to characters; how can I do that? The same issue exists with Python in the terminal.
After some searching I came to know that this is not a Python issue but a rendering issue. So how can I make IDLE render Unicode characters properly?

Related

Print Urdu/Arabic Language in Console (Python)

I am a newbie and i don't know how to set my console to print urdu / arabic characters i am using Wing IDE when i run this code
print "طجکسعبکبطکسبطب"
i get this on my console
طجکسعبکبطکسبطب
You should encode your string arguments as unicode UTF-8 or later. Wrap the whole code in unicode, and/or mark individual string args as unicode (u'your text') too.
Additionally, you should make sure that unicode is enabled in your terminal/prompt window too.
#!/usr/bin/env python
# -*- coding: UTF-8 -*-
arabic_words = u'لغت العربیه'
print arabic_words

Display unicode in python without print

I would like to display unicode characters without using print for example :
>>> print 'é'
é
The unicode is displayed perfectly but when I try to display without print it gives me unwanted results :
>>> 'é'
'\xc3\xa9'
And the expected result is 'é'
EDIT
The reason why I need this feature is, I m writing a scraper with scrapy framework, and I m crawling a website with unicode charachters, when I start crawling the log display something like this :
\u06a9\u06cc\u0644\u0648 \u0645\u062a\u0631 \u0628\u0631 \u0633\u0627\u0639\u062a\r\n\r\n
I've tried to use unicode built-in function, and I've added the header
# -*- coding: utf-8 -*-
But without any results
Python3 could be your solution, this version supports UTF-8 as default string encoding.
I'm not sure why you want to do this, but print statement converts objects given certain string conversion rules. You're seeing the value through conversion.
The expression is the raw return when you're experiencing the unicode.
https://docs.python.org/2/reference/simple_stmts.html#grammar-token-print_stmt

Support more characters in Python 2.7

Whenever I try to use the following characters in Python 2.7 "šđžćč" the console gives some non-ascii character error.
This is fixed by adding # -*- coding: utf-8 -*- to the header.
However when I try to use the characters this happends. Eg.
The code is print "Upiši svoj tekst:" but Upi┼íi svoj tekst: is printed.

SyntaxError: Non-ASCII character '\xa3' in file when function returns '£'

Say I have a function:
def NewFunction():
return '£'
I want to print some stuff with a pound sign in front of it and it prints an error when I try to run this program, this error message is displayed:
SyntaxError: Non-ASCII character '\xa3' in file 'blah' but no encoding declared;
see http://www.python.org/peps/pep-0263.html for details
Can anyone inform me how I can include a pound sign in my return function? I'm basically using it in a class and it's within the '__str__' part that the pound sign is included.
I'd recommend reading that PEP the error gives you. The problem is that your code is trying to use the ASCII encoding, but the pound symbol is not an ASCII character. Try using UTF-8 encoding. You can start by putting # -*- coding: utf-8 -*- at the top of your .py file. To get more advanced, you can also define encodings on a string by string basis in your code. However, if you are trying to put the pound sign literal in to your code, you'll need an encoding that supports it for the entire file.
Adding the following two lines at the top of my .py script worked for me (first line was necessary):
#!/usr/bin/env python
# -*- coding: utf-8 -*-
First add the # -*- coding: utf-8 -*- line to the beginning of the file and then use u'foo' for all your non-ASCII unicode data:
def NewFunction():
return u'£'
or use the magic available since Python 2.6 to make it automatic:
from __future__ import unicode_literals
The error message tells you exactly what's wrong. The Python interpreter needs to know the encoding of the non-ASCII character.
If you want to return U+00A3 then you can say
return u'\u00a3'
which represents this character in pure ASCII by way of a Unicode escape sequence. If you want to return a byte string containing the literal byte 0xA3, that's
return b'\xa3'
(where in Python 2 the b is implicit; but explicit is better than implicit).
The linked PEP in the error message instructs you exactly how to tell Python "this file is not pure ASCII; here's the encoding I'm using". If the encoding is UTF-8, that would be
# coding=utf-8
or the Emacs-compatible
# -*- encoding: utf-8 -*-
If you don't know which encoding your editor uses to save this file, examine it with something like a hex editor and some googling. The Stack Overflow character-encoding tag has a tag info page with more information and some troubleshooting tips.
In so many words, outside of the 7-bit ASCII range (0x00-0x7F), Python can't and mustn't guess what string a sequence of bytes represents. https://tripleee.github.io/8bit#a3 shows 21 possible interpretations for the byte 0xA3 and that's only from the legacy 8-bit encodings; but it could also very well be the first byte of a multi-byte encoding. But in fact, I would guess you are actually using Latin-1, so you should have
# coding: latin-1
as the first or second line of your source file. Anyway, without knowledge of which character the byte is supposed to represent, a human would not be able to guess this, either.
A caveat: coding: latin-1 will definitely remove the error message (because there are no byte sequences which are not technically permitted in this encoding), but might produce completely the wrong result when the code is interpreted if the actual encoding is something else. You really have to know the encoding of the file with complete certainty when you declare the encoding.
Adding the following two lines in the script solved the issue for me.
# !/usr/bin/python
# coding=utf-8
Hope it helps !
You're probably trying to run Python 3 file with Python 2 interpreter. Currently (as of 2019), python command defaults to Python 2 when both versions are installed, on Windows and most Linux distributions.
But in case you're indeed working on a Python 2 script, a not yet mentioned on this page solution is to resave the file in UTF-8+BOM encoding, that will add three special bytes to the start of the file, they will explicitly inform the Python interpreter (and your text editor) about the file encoding.

Compile Syntax Error: non ASCII letters in a string

I have a python file that contains a long string of HTML. When I compile & run this file/script I get this error:
_SyntaxError: Non-ASCII character '\x92' in file C:\Users...\GlobalVars.py on line 2509, but no encoding declared; see http://www.python.org/peps/pep-0263.html for details_
I have followed the instructions and gone to the url suggested. But putting something like this at the top of my script still doesn't work:
#!/usr/bin/python
# -*- coding: latin-1 -*-
What do you think I can do to stop this compiler error from occuring?
First, in order to prevent problems like the one specified in the question you should not ever use other encoding than utf-8 for python source code.
This is the correct header to use
#! /usr/bin/env python
# -*- coding: utf-8 -*-
Now you have to convert the file from whatever encoding you may have to utf-8, probably your current text editor is able to do that.
If you wonder why I say this remember that it is impossible for a text editor to safely guess your non-unicode encoding because there is no BOM for non-unicode. For this reason most decent editors are using UTF-8 as default even when encoding is not specified. And BTW, the encoding specified in the python file header is for Python only, most editors ignore what you wrote there.
Also, as you can see Python is trying to decode a character above 128 using ASCII (not latin-1), this is supposed to fail. I am not sure why this happens but I don't even care too much because there is a much better way to solve the problem.
It must be at the top of the script that has the non-ASCII text, and it must match the actual encoding of the file. \x92 is CP1252, not Latin-1.
If you are just concerned about getting rid of this error without getting into the details of it(which you can get from the other answers on this page), you can do the following -
1) Copy your code and paste it in Notepad++
2) Select Encoding -> Encode in UTF-8
3) Select View -> Show Symbol -> Show All Characters
Now it would be visible to you that which symbol is causing the issue(x92 would be visible). Replace/Remove it to solve the problem.
Found this and hope it's helpful to the next person:
http://www.sitepoint.com/forums/showthread.php?567734-Anyone-know-what-this-error-means
Code point 0x92 (146 decimal) is the right single quotation mark, or
apostrophe (’) in Windows-1252. It's an invalid character in ISO 8859
and in UTF-8, since the 0x80-0x9F range is reserved for C1 control
characters.
Not sure if I'm busting copyright. If so please remove the blockquote.
The encoding declaration indicates that you think the file is in latin-1 encoding, but the python interpreter is finding that a char at or very near line 2509 in GlobalVars.py that is not what you think it is.
You should first confirm the encoding of GlobalVars.py. Is it really latin-1?
Next, you should check the characters near line 2509. Are they also latin-1, or were they cut and pasted from a web page or somewhere else (maybe there are UTF-8 chars mixed up in there)?
If you have chars in your source file that aren't what you think they are, then you may need to clean up the file before going any further.
add these lines on top of your code
#! /usr/bin/env python
# -*- coding: utf-8 -*-
An easy workaround solution if your file is really in latin-1 is to change the html string with its representation.
Afaik:
\x92 => 146 in decimal => Æ => Æ
If your character is not Æ, then your file is not encoded into latin-1 ;-) (and you might wanna check if utf-8/cp1292 works better as a quick win)
EDIT:
Of course, you want to check your ACTUAL file encoding before trying. I might be wrong, not 100% sure \x92 is Æ in Iso8859-1 : according to this page, it doesn't seem defined.

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