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plurals

POQFile cannot open filenames containing unicode characters
primarykey
Id
14805706
data
AcceptedAnswerId
14816871
AnswerCount
1
ClosedDate
CommentCount
6
CommunityOwnedDate
CreationDate
2013-02-11T04:03:09.387
FavoriteCount
2
LastActivityDate
2013-02-11T16:53:37.850
LastEditDate
2013-02-11T16:45:04.060
LastEditorUserId
537925
OwnerUserId
537925
ParentId
0
PostTypeId
1
Score
3
ViewCount
910
LastEditorDisplayName
text
Body
I am having a problem with PySide. I was dealing with some images, using <code>QtCore.QImage</code> and noticed that image files which had unicode characters in their path names were not being opened. So I started investigating and found that <code>QFile</code> presents the same problem. I've tried feeding it a 'utf8' encoded bytestring, and a decoded unicode string, same difference. I also tried using those <code>QFile.encodeName</code> and <code>QFile.decodeName</code> functions but all that did was strip the non-ascii characters from the filename. I made this script to demonstrate: <pre><code>#!/usr/bin/env python # -*- coding: utf-8 -*- import os from PySide.QtCore import QFile, QIODevice try: os.makedirs(u'/tmp/qttest') except: pass #probably dir just exists os.chdir(u'/tmp/qttest') def make_file(fn): f = open(fn, 'w') f.close() def check_file(fn): f = QFile(fn) f.open(QIODevice.ReadOnly) return f.isReadable() fna = u'somefile.txt' fnu = u'einhverskrá.txt' make_file(fna) make_file(fnu) print fna+u' was opened successfully: ', check_file(fna) print fnu+u' was opened successfully: ', check_file(fnu) print fna+u' exists: ', os.path.exists(fna) print fnu+u' exists: ', os.path.exists(fnu) </code></pre> Output <pre><code>somefile.txt was opened successfully: True einhverskrá.txt was opened successfully: False somefile.txt exists: True einhverskrá.txt exists: True </code></pre> Can someone explain this? UPDATE After looking through the source code, I have found out that <code>QFile.open()</code> always passes the filename through this function on unix: <pre><code>static QString locale_decode(const QByteArray &f) { #if defined(Q_OS_DARWIN) // Mac always gives us UTF-8 and decomposed, we want that composed... return QString::fromUtf8(f).normalized(QString::NormalizationForm_C); #elif defined(Q_OS_SYMBIAN) return QString::fromUtf8(f); #else return QString::fromLocal8Bit(f); #endif } </code></pre> This always results in unicode characters being stripped from the string.
Tags
<python><qt><pyside>
Title
QFile cannot open filenames containing unicode characters
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USSteinthor.palsson
UserOwnerUserId
1. USSteinthor.palsson
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PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 POQFile cannot open filenames containing unicode characters
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
2. VO
 singulars
 PostPostId
 POQFile cannot open filenames containing unicode characters
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
3. VO
 singulars
 PostPostId
 POQFile cannot open filenames containing unicode characters
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId

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