What could be causing this error when I try to insert a foreign character into the database?
>>UnicodeEncodeError: 'latin-1' codec can't encode character u'\u201c' in position 0: ordinal not in range(256)
And how do I resolve it?
Thanks!
I ran into this same issue when using the Python MySQLdb module. Since MySQL will let you store just about any binary data you want in a text field regardless of character set, I found my solution here:
Using UTF8 with Python MySQLdb
Edit: Quote from the above URL to satisfy the request in the first comment...
"UnicodeEncodeError:'latin-1' codec can't encode character ..."
This is because MySQLdb normally tries to encode everythin to latin-1.
This can be fixed by executing the following commands right after
you've etablished the connection:
db.set_character_set('utf8')
dbc.execute('SET NAMES utf8;')
dbc.execute('SET CHARACTER SET utf8;')
dbc.execute('SET character_set_connection=utf8;')
"db" is the result of MySQLdb.connect(), and "dbc" is the result of
db.cursor().
Character U+201C Left Double Quotation Mark is not present in the Latin-1 (ISO-8859-1) encoding.
It is present in code page 1252 (Western European). This is a Windows-specific encoding that is based on ISO-8859-1 but which puts extra characters into the range 0x80-0x9F. Code page 1252 is often confused with ISO-8859-1, and it's an annoying but now-standard web browser behaviour that if you serve your pages as ISO-8859-1, the browser will treat them as cp1252 instead. However, they really are two distinct encodings:
>>> u'He said \u201CHello\u201D'.encode('iso-8859-1')
UnicodeEncodeError
>>> u'He said \u201CHello\u201D'.encode('cp1252')
'He said \x93Hello\x94'
If you are using your database only as a byte store, you can use cp1252 to encode “ and other characters present in the Windows Western code page. But still other Unicode characters which are not present in cp1252 will cause errors.
You can use encode(..., 'ignore') to suppress the errors by getting rid of the characters, but really in this century you should be using UTF-8 in both your database and your pages. This encoding allows any character to be used. You should also ideally tell MySQL you are using UTF-8 strings (by setting the database connection and the collation on string columns), so it can get case-insensitive comparison and sorting right.
The best solution is
set mysql's charset to 'utf-8'
do like this comment(add use_unicode=True and charset="utf8")
db = MySQLdb.connect(host="localhost", user = "root", passwd = "", db = "testdb", use_unicode=True, charset="utf8") – KyungHoon Kim Mar
13 '14 at 17:04
detail see :
class Connection(_mysql.connection):
"""MySQL Database Connection Object"""
default_cursor = cursors.Cursor
def __init__(self, *args, **kwargs):
"""
Create a connection to the database. It is strongly recommended
that you only use keyword parameters. Consult the MySQL C API
documentation for more information.
host
string, host to connect
user
string, user to connect as
passwd
string, password to use
db
string, database to use
port
integer, TCP/IP port to connect to
unix_socket
string, location of unix_socket to use
conv
conversion dictionary, see MySQLdb.converters
connect_timeout
number of seconds to wait before the connection attempt
fails.
compress
if set, compression is enabled
named_pipe
if set, a named pipe is used to connect (Windows only)
init_command
command which is run once the connection is created
read_default_file
file from which default client values are read
read_default_group
configuration group to use from the default file
cursorclass
class object, used to create cursors (keyword only)
use_unicode
If True, text-like columns are returned as unicode objects
using the connection's character set. Otherwise, text-like
columns are returned as strings. columns are returned as
normal strings. Unicode objects will always be encoded to
the connection's character set regardless of this setting.
charset
If supplied, the connection character set will be changed
to this character set (MySQL-4.1 and newer). This implies
use_unicode=True.
sql_mode
If supplied, the session SQL mode will be changed to this
setting (MySQL-4.1 and newer). For more details and legal
values, see the MySQL documentation.
client_flag
integer, flags to use or 0
(see MySQL docs or constants/CLIENTS.py)
ssl
dictionary or mapping, contains SSL connection parameters;
see the MySQL documentation for more details
(mysql_ssl_set()). If this is set, and the client does not
support SSL, NotSupportedError will be raised.
local_infile
integer, non-zero enables LOAD LOCAL INFILE; zero disables
autocommit
If False (default), autocommit is disabled.
If True, autocommit is enabled.
If None, autocommit isn't set and server default is used.
There are a number of undocumented, non-standard methods. See the
documentation for the MySQL C API for some hints on what they do.
"""
I hope your database is at least UTF-8. Then you will need to run yourstring.encode('utf-8') before you try putting it into the database.
Use the below snippet to convert the text from Latin to English
import unicodedata
def strip_accents(text):
return "".join(char for char in
unicodedata.normalize('NFKD', text)
if unicodedata.category(char) != 'Mn')
strip_accents('áéíñóúü')
output:
'aeinouu'
You are trying to store a Unicode codepoint \u201c using an encoding ISO-8859-1 / Latin-1 that can't describe that codepoint. Either you might need to alter the database to use utf-8, and store the string data using an appropriate encoding, or you might want to sanitise your inputs prior to storing the content; i.e. using something like Sam Ruby's excellent i18n guide. That talks about the issues that windows-1252 can cause, and suggests how to process it, plus links to sample code!
SQLAlchemy users can simply specify their field as convert_unicode=True.
Example:
sqlalchemy.String(1000, convert_unicode=True)
SQLAlchemy will simply accept unicode objects and return them back, handling the encoding itself.
Docs
Latin-1 (aka ISO 8859-1) is a single octet character encoding scheme, and you can't fit \u201c (“) into a byte.
Did you mean to use UTF-8 encoding?
UnicodeEncodeError: 'latin-1' codec can't encode character '\u2013' in position 106: ordinal not in range(256)
Solution 1:
\u2013 - google the character meaning to identify what character actually causing this error, Then you can replace that specific character, in the string with some other character, that's part of the encoding you are using.
Solution 2:
Change the string encoding to some encoding which includes all the character of your string. and then you can print that string, it will work just fine.
below code is used to change encoding of the string , borrowed from #bobince
u'He said \u201CHello\u201D'.encode('cp1252')
The latest version of mysql.connector has only
db.set_charset_collation('utf8', 'utf8_general_ci')
and NOT
db.set_character_set('utf8') //This feature is not available
I ran into the same problem when I was using PyMySQL. I checked this package version, it's 0.7.9.
Then I uninstall it and reinstall PyMySQL-1.0.2, the issue is solved.
pip uninstall PyMySQL
pip install PyMySQL
Python: You will need to add
# - * - coding: UTF-8 - * - (remove the spaces around * )
to the first line of the python file. and then add the following to the text to encode: .encode('ascii', 'xmlcharrefreplace'). This will replace all the unicode characters with it's ASCII equivalent.
I'm trying to move data to Firestore from a MySQL table encoded as utf-8 (specifically, utf8mb4_unicode_520_ci). I'm using Golang's Firestore libraries along with sqlx. Most or every word that has accent characters fails, e.g., müller, évident, etc. The error returned is as follows:
rpc error: code = Internal desc = grpc: error while marshaling: proto:
field "google.firestore.v1.Value.ValueType" contains invalid UTF-8
I can enter the accent characters into Firestore manually using the browser-based interface, so I'm guessing the issue lies with the Golang library. Is there any workaround that would preserve the accent characters?
The solution to my issue was unrelated to Firestore and libraries I was using, but instead was a problem in a word-tokenization function I had written. The tokenization was mangling accented characters into bad UTF-8, so converting them to runes before tokenization solved the issue.
I'm looking over Section 3.4 of RFC 3986 trying to understand what constitutes a valid URI query parameter key, but I'm not seeing a clear answer.
The reason I'm asking is because I'm writing a Ruby class that composes a URI with query parameters. When a new parameter is added I want to validate the key. Based on experience, it seems like the key will be invalid if it requires any escaping.
I should also say that I plan to validate the key. I'm not sure how to go about validating this data either, but I do know that in all cases I should escape this value.
Advice is appreciated. Advice in the context of how validation might already be possible through say a Ruby Gem would also be a plus.
I could well be wrong, but that spec seems to say that anything following '?' or '#' is valid as long. I wonder if you should be looking more at the spec for 'application/x-www-form-urlencoded' (ie. the key/value pairs we're all used to)?
http://www.w3.org/TR/html401/interact/forms.html#h-17.13.4.1
This is the default content type. Forms submitted with this content
type must be encoded as follows:
Control names and values are escaped. Space characters are replaced by +', and then reserved characters are escaped as described in [RFC1738], section 2.2: Non-alphanumeric characters are replaced by %HH', a percent sign and two hexadecimal digits representing the ASCII code of the character. Line breaks are represented as "CR LF" pairs (i.e., `%0D%0A').
The control names/values are listed in the order they appear in the document. The name is separated from the value by =' and name/value pairs are separated from each other by &'.
I don't believe key=value is part of the RFC, it's a convention that has emerged. Wikipedia suggests this is an 'W3C recommendation'.
Seems like some good stuff to be found searching on the application/x-www-form-urlencoded content type.
http://www.w3.org/TR/REC-html40/interact/forms.html#form-data-set
I want to convert a string from 1252 char code set to UTF-8. For this I used iconv library in my c++ application development which is based on linux platform.
I used the the API iconv() and converted my string.
there is a character è in my input. UTF-8 also does support to this character. So when my conversion is over, my output also should contain the same character è.
But When I see the output, Character è is converted to è which I don't want.
One more point is if the converter found any unknown character, that should be automatically replaced with the default REPLACEMENT CHARACTER of UTF-8 �(FFFD) which is not happening.
How can I achieve the above two points with the library iconv.
I used the below APIs to convert the string
1)iconv_open("UTF-8","CP1252")
2)iconv() - Pass the parameters required
3)iconv_close(cd)
Can any body help me to sort out this issue please......
Please use this to replace invalid utf-8 charaters.
iconv_open("UTF-8//IGNORE","CP1252")
I have an RSS feed and one of the links has an 'ó' in it which causes validation issue. Is it not possible to include these characters in the URI? Is it bad practice to have a character like this in the URI anyway?
Feed us UTF-8.
Unicode characters are legal in URI's. Now you can also use them in domain names. So you have error in your validation mechanism.