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Python Strings encode() method

  • Last Updated : 05 Aug, 2021

In today’s world, security holds the key in many applications. Thus the need for secure storage of passwords in the database is required and hence there is to save encoded versions of strings. To achieve this, python in its language has defined “encode()” that encodes strings with the specified encoding scheme. There are several encoding schemes defined in the language. The Python String encode() method encodes the string, using the specified encoding. If no encoding is specified, UTF-8 will be used.

Syntax:

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encode(encoding, error)



Parameters: 

  • encoding: Specifies the encoding on the basis of which encoding has to be performed. 
  • error: Decides how to handle the errors if they occur, e.g ‘strict’ raises Unicode error in case of exception and ‘ignore’ ignores the errors that occurred. There are six types of error response
    • strict – default response which raises a UnicodeDecodeError exception on failure
    • ignore – ignores the unencodable unicode from the result
    • replace – replaces the unencodable unicode to a question mark ?
    • xmlcharrefreplace – inserts XML character reference instead of unencodable unicode
    • backslashreplace – inserts a \uNNNN escape sequence instead of unencodable unicode
    • namereplace – inserts a \N{…} escape sequence instead of unencodable unicode

Returns: 

Returns the string in the encoded form

Example 1: Code to print encoding schemes available

Python3




# Python3 code to print
# all encodings available
 
from encodings.aliases import aliases
 
# Printing list available
print("The available encodings are : ")
print(aliases.keys())

Output: 

The available encodings are : 
dict_keys(['ibm039', 'iso_ir_226', '1140', 'iso_ir_110', '1252', 'iso_8859_8', 'iso_8859_3', 'iso_ir_166', 'cp367', 'uu', 'quotedprintable', 'ibm775', 'iso_8859_16_2001', 'ebcdic_cp_ch', 'gb2312_1980', 'ibm852', 'uhc', 'macgreek', '850', 'iso2022jp_2', 'hz_gb_2312', 'elot_928', 'iso8859_1', 'eucjp', 'iso_ir_199', 'ibm865', 'cspc862latinhebrew', '863', 'iso_8859_5', 'latin4', 'windows_1253', 'csisolatingreek', 'latin5', '855', 'windows_1256', 'rot13', 'ms1361', 'windows_1254', 'ibm863', 'iso_8859_14_1998', 'utf8_ucs2', '500', 'iso8859', '775', 'l7', 'l2', 'gb18030_2000', 'l9', 'utf_32be', 'iso_ir_100', 'iso_8859_4', 'iso_ir_157', 'csibm857', 'shiftjis2004', 'iso2022jp_1', 'iso_8859_2_1987', 'cyrillic', 'ibm861', 'ms950', 'ibm437', '866', 'csibm863', '932', 'iso_8859_14', 'cskoi8r', 'csptcp154', '852', 'maclatin2', 'sjis', 'korean', '865', 'u32', 'csshiftjis', 'dbcs', 'csibm037', 'csibm1026', 'bz2', 'quopri', '860', '1255', '861', 'iso_ir_127', 'iso_celtic', 'chinese', 'l8', '1258', 'u_jis', 'cspc850multilingual', 'iso_2022_jp_2', 'greek8', 'csibm861', '646', 'unicode_1_1_utf_7', 'ibm862', 'latin2', 'ecma_118', 'csisolatinarabic', 'zlib', 'iso2022jp_3', 'ksx1001', '858', 'hkscs', 'shiftjisx0213', 'base64', 'ibm857', 'maccentraleurope', 'latin7', 'ruscii', 'cp_is', 'iso_ir_101', 'us_ascii', 'hebrew', 'ansi_x3.4_1986', 'csiso2022jp', 'iso_8859_15', 'ibm860', 'ebcdic_cp_us', 'x_mac_simp_chinese', 'csibm855', '1250', 'maciceland', 'iso_ir_148', 'iso2022jp', 'u16', 'u7', 's_jisx0213', 'iso_8859_6_1987', 'csisolatinhebrew', 'csibm424', 'quoted_printable', 'utf_16le', 'tis260', 'utf', 'x_mac_trad_chinese', '1256', 'cp866u', 'jisx0213', 'csiso58gb231280', 'windows_1250', 'cp1361', 'kz_1048', 'asmo_708', 'utf_16be', 'ecma_114', 'eucjis2004', 'x_mac_japanese', 'utf8', 'iso_ir_6', 'cp_gr', '037', 'big5_tw', 'eucgb2312_cn', 'iso_2022_jp_3', 'euc_cn', 'iso_8859_13', 'iso_8859_5_1988', 'maccyrillic', 'ks_c_5601_1987', 'greek', 'ibm869', 'roman8', 'csibm500', 'ujis', 'arabic', 'strk1048_2002', '424', 'iso_8859_11_2001', 'l5', 'iso_646.irv_1991', '869', 'ibm855', 'eucjisx0213', 'latin1', 'csibm866', 'ibm864', 'big5_hkscs', 'sjis_2004', 'us', 'iso_8859_7', 'macturkish', 'iso_2022_jp_2004', '437', 'windows_1255', 's_jis_2004', 's_jis', '1257', 'ebcdic_cp_wt', 'iso2022jp_2004', 'ms949', 'utf32', 'shiftjis', 'latin', 'windows_1251', '1125', 'ks_x_1001', 'iso_8859_10_1992', 'mskanji', 'cyrillic_asian', 'ibm273', 'tis620', '1026', 'csiso2022kr', 'cspc775baltic', 'iso_ir_58', 'latin8', 'ibm424', 'iso_ir_126', 'ansi_x3.4_1968', 'windows_1257', 'windows_1252', '949', 'base_64', 'ms936', 'csisolatin2', 'utf7', 'iso646_us', 'macroman', '1253', '862', 'iso_8859_1_1987', 'csibm860', 'gb2312_80', 'latin10', 'ksc5601', 'iso_8859_10', 'utf8_ucs4', 'csisolatin4', 'ebcdic_cp_be', 'iso_8859_1', 'hzgb', 'ansi_x3_4_1968', 'ks_c_5601', 'l3', 'cspc8codepage437', 'iso_8859_7_1987', '8859', 'ibm500', 'ibm1026', 'iso_8859_6', 'csibm865', 'ibm866', 'windows_1258', 'iso_ir_138', 'l4', 'utf_32le', 'iso_8859_11', 'thai', '864', 'euc_jis2004', 'cp936', '1251', 'zip', 'unicodebigunmarked', 'csHPRoman8', 'csibm858', 'utf16', '936', 'ibm037', 'iso_8859_8_1988', '857', 'csibm869', 'ebcdic_cp_he', 'cp819', 'euccn', 'iso_8859_2', 'ms932', 'iso_2022_jp_1', 'iso_2022_kr', 'csisolatin6', 'iso_2022_jp', 'x_mac_korean', 'latin3', 'csbig5', 'hz_gb', 'csascii', 'u8', 'csisolatin5', 'csisolatincyrillic', 'ms_kanji', 'cspcp852', 'rk1048', 'iso2022jp_ext', 'csibm273', 'iso_2022_jp_ext', 'ibm858', 'ibm850', 'sjisx0213', 'tis_620_2529_1', 'l10', 'iso_ir_109', 'ibm1125', '1254', 'euckr', 'tis_620_0', 'l1', 'ibm819', 'iso2022kr', 'ibm367', '950', 'r8', 'hex', 'cp154', 'tis_620_2529_0', 'iso_8859_16', 'pt154', 'ebcdic_cp_ca', 'ibm1140', 'l6', 'csibm864', 'csisolatin1', 'csisolatin3', 'latin6', 'iso_8859_9_1989', 'iso_8859_3_1988', 'unicodelittleunmarked', 'macintosh', '273', 'latin9', 'iso_8859_4_1988', 'iso_8859_9', 'ebcdic_cp_nl', 'iso_ir_144'])

Example 2: Code to encode the string 

Python3




# Python code to demonstrate
# encode()
  
# initializing string
str = "geeksforgeeks"
  
# printing the encoded string
print ("The encoded string in utf8 format is : ",)
print (str.encode('utf8', 'ignore'))

Output:

The encoded string in utf8 format is : 
b'geeksforgeeks'

Example 3: Encoding with the error parameter

Python3




# unicode string
string = 'GeeksforGeeks'
 
# print string
print('The string is:', string)
 
# ignore error
print(string.encode("ascii", "ignore"))
 
# replace error
print(string.encode("ascii", "replace"))

Output:

The string is: GeeksforGeeks
b'GeeksforGeeks'
b'GeeksforGeeks'



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