how can i escape *all* characters into their corresponding html entity names and numbers in python?

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ord does pretty much what you want:

 def encode(s):
    return ''.join('&#{:07d};'.format(ord(c)) for c in s)

Aesthetically, I prefer hex encoding:

 def encode(s):
    return ''.join('&#x{:06x};'.format(ord(c)) for c in s)

If you want to force the use of named entities wherever possible, you can check the html.entities.codepoint2name mapping after applying ord to the characters:

def encode(s):
   return ''.join('&{};'.format(codepoint2name.get(i, '#{}'.format(i))) for i in map(ord, s))

Suggestion : 2

But surprisingly html.unescape unescapes all anycodings_python-3.x entities into their corresponding anycodings_python-3.x characters.,But I want all characters to be converted anycodings_python-3.x and not just '<' , '>', '&' anycodings_python-3.x ,etc. And also html.escape only gives html anycodings_python-3.x entity names and not numbers but I want anycodings_python-3.x both.,How do i assign a client ID (string,) stores a 3 digit numerical string of characters?,Vscode: evaluating multiple selected lines in the debug console causes an indentation error (with python classes)

I wanted to encode a string to its anycodings_python-3.x corresponding html entities but anycodings_python-3.x unfortunately I am not able to. As I said in anycodings_python-3.x question title, I want all characters in a anycodings_python-3.x string to be converted into their anycodings_python-3.x corresponding html entity(both numbers and anycodings_python-3.x names). So according to the documentation. I anycodings_python-3.x tried:

In [31]: import html

In [32]: s = '<img src=x onerror="javascript:alert(" XSS")">'

In [33]: html.escape(s)
Out[33]: '&lt;img src=x onerror=&quot;javascript:alert(&quot;XSS&quot;)&quot;&gt;'

But surprisingly html.unescape unescapes all anycodings_python-3.x entities into their corresponding anycodings_python-3.x characters.

In [34]: a = '<img src=x onerror="&#0000106&#0000097&#0000118&#0000097&#0000115&#0000099&#0000114&#0000105&#0000112&#0000116&#000005
    ...: 8&#0000097&#0000108&#0000101&#0000114&#0000116&#0000040&#0000039&#0000088&#0000083&#0000083&#0000039&#0000041">'

In [35]: html.unescape(a)
Out[35]: '<img src=x onerror="javascript:alert(\'XSS\')">'

ord does pretty much what you want:

 def encode(s):
    return ''.join('&#{:07d};'.format(ord(c)) for c in s)

Aesthetically, I prefer hex encoding:

 def encode(s):
    return ''.join('&#x{:06x};'.format(ord(c)) for c in s)

If you want to force the use of named anycodings_python-3.x entities wherever possible, you can anycodings_python-3.x check the html.entities.codepoint2name anycodings_python-3.x mapping after applying ord to the anycodings_python-3.x characters:

def encode(s):
   return ''.join('&{};'.format(codepoint2name.get(i, '#{}'.format(i))) for i in map(ord, s))

Suggestion : 3

HTML provides special entity names and entity numbers which are essentially escape sequences that replace these characters. Escape sequences in HTML always start with an ampersand and end with a semicolon.,Provided below is a table of special characters that HTML 4 suggests to escape and their respective entity names and entity numbers:,When storing raw HTML in databases or variables, we need to escape special characters that are not markup text but might be confused as such.,To escape these characters, we can use the html.escape() method in Python to encode your HTML in ascii string. html.escape() takes HTML script as an argument, as well as one optional argument quote that is set to True by default. To use html.escape(), you need to import the html module that comes with Python 3.2 and above. Here is how you would use this method in code:

If not escaped, these characters may lead the browser to display a web page incorrectly. For example, the following text in HTML contains quotation marks around “Edpresso shots” that could confuse the end and opening of a new string.

I love reading "Edpresso shots".
import html

myHtml = ""
"& < "
' >""" 
encodedHtml = html.escape(myHtml)
print(encodedHtml)
encodedHtml = html.escape(myHtml, quote = False)
print(encodedHtml)

Suggestion : 4

Last Updated : 08 Dec, 2020

Syntax:

html.unescape(String)

Suggestion : 5

The Unicode standard contains a lot of tables listing characters and their corresponding code points:,The Unicode standard describes how characters are represented by code points. A code point value is an integer in the range 0 to 0x10FFFF (about 1.1 million values, the actual number assigned is less than that). In the standard and in this document, a code point is written using the notation U+265E to mean the character with value 0x265e (9,822 in decimal).,The following program displays some information about several characters, and prints the numeric value of one particular character:,One-character Unicode strings can also be created with the chr() built-in function, which takes integers and returns a Unicode string of length 1 that contains the corresponding code point. The reverse operation is the built-in ord() function that takes a one-character Unicode string and returns the code point value:

0061 'a';
LATIN SMALL LETTER A
0062 'b';
LATIN SMALL LETTER B
0063 'c';
LATIN SMALL LETTER C
   ...
   007 B '{';
LEFT CURLY BRACKET
   ...
   2167 'Ⅷ';
ROMAN NUMERAL EIGHT
2168 'Ⅸ';
ROMAN NUMERAL NINE
   ...
   265 E '♞';
BLACK CHESS KNIGHT
265 F '♟';
BLACK CHESS PAWN
   ...
   1 F600 '😀';
GRINNING FACE
1 F609 '😉';
WINKING FACE
   ...
   P y t h o n
   0x50 00 00 00 79 00 00 00 74 00 00 00 68 00 00 00 6 f 00 00 00 6 e 00 00 00
   0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
try:
with open('/tmp/input.txt', 'r') as f:
   ...
   except OSError:
   # 'File not found'
error message.
print("Fichier non trouvé")
répertoire = "/tmp/records.log"
with open(répertoire, "w") as f:
   f.write("test\n")
>>> "\N{GREEK CAPITAL LETTER DELTA}"
# Using the character name
   '\u0394' >>>
   "\u0394"
# Using a 16 - bit hex value '\u0394' >>>
   "\U00000394"
# Using a 32 - bit hex value '\u0394'
>>> b '\x80abc'.decode("utf-8", "strict")
Traceback(most recent call last):
   ...
   UnicodeDecodeError: 'utf-8'
codec can 't decode byte 0x80 in position 0:
invalid start byte
   >>>
   b '\x80abc'.decode("utf-8", "replace")
'\ufffdabc' >>>
b '\x80abc'.decode("utf-8", "backslashreplace")
'\\x80abc' >>>
b '\x80abc'.decode("utf-8", "ignore")
'abc'