| 2017-01-15 23:29:26 |
Chow Loong Jin |
description |
In [5]: qrencode.encode_scaled("foo",1)
---------------------------------------------------------------------------
Exception Traceback (most recent call last)
<ipython-input-5-be07c22beab2> in <module>()
----> 1 qrencode.encode_scaled("foo",1)
/usr/lib/python2.7/dist-packages/qrencode/__init__.pyc in encode_scaled(data, size, version, level, hint, case_sensitive)
67 the QR-code.
68 """
---> 69 version, src_size, im = encode(data, version, level, hint, case_sensitive)
70 if size < src_size:
71 size = src_size
/usr/lib/python2.7/dist-packages/qrencode/__init__.pyc in encode(data, version, level, hint, case_sensitive)
45 version, size, data = _encode(data, version, level, hint, False)
46
---> 47 im = Image.fromstring('L', (size, size), data)
48 return (version, size, im)
49
/usr/lib/python2.7/dist-packages/PIL/Image.pyc in fromstring(*args, **kw)
2061 def fromstring(*args, **kw):
2062 raise Exception("fromstring() has been removed. " +
-> 2063 "Please call frombytes() instead.")
2064
2065
Exception: fromstring() has been removed. Please call frombytes() instead.
In [6]:
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: python-qrencode 1.01-5
Uname: Linux 4.6.0-040600-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: GNOME
Date: Tue May 31 07:40:21 2016
InstallationDate: Installed on 2015-12-02 (180 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151027)
SourcePackage: python-qrencode
UpgradeStatus: No upgrade log present (probably fresh install) |
[Impact]
python-qrencode is currently broken for all users in yakkety due to the removal of Image.fromstring from pillow.
The fix is to replace all calls to Image.fromstring with Image.frombytes.
[Test Case]
Run the following script and see if it ends in an exception:
```
import qrencode
qrencode.encode_scaled("foo", 1)
```
[Regression Potential]
It's unlikely that python-qrencode can regress any further, because in its current state, both exported python methods are completely broken and will throw an exception unconditionally with the pillow version in Yakkety.
[Other Info]
rdeps may also be broken if they use Image.tostring on the output. So far, the only known rdep that is broken is qreator.
Below is the stack trace and exception thrown by the broken version of qrencode.
In [5]: qrencode.encode_scaled("foo",1)
---------------------------------------------------------------------------
Exception Traceback (most recent call last)
<ipython-input-5-be07c22beab2> in <module>()
----> 1 qrencode.encode_scaled("foo",1)
/usr/lib/python2.7/dist-packages/qrencode/__init__.pyc in encode_scaled(data, size, version, level, hint, case_sensitive)
67 the QR-code.
68 """
---> 69 version, src_size, im = encode(data, version, level, hint, case_sensitive)
70 if size < src_size:
71 size = src_size
/usr/lib/python2.7/dist-packages/qrencode/__init__.pyc in encode(data, version, level, hint, case_sensitive)
45 version, size, data = _encode(data, version, level, hint, False)
46
---> 47 im = Image.fromstring('L', (size, size), data)
48 return (version, size, im)
49
/usr/lib/python2.7/dist-packages/PIL/Image.pyc in fromstring(*args, **kw)
2061 def fromstring(*args, **kw):
2062 raise Exception("fromstring() has been removed. " +
-> 2063 "Please call frombytes() instead.")
2064
2065
Exception: fromstring() has been removed. Please call frombytes() instead.
In [6]:
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: python-qrencode 1.01-5
Uname: Linux 4.6.0-040600-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: GNOME
Date: Tue May 31 07:40:21 2016
InstallationDate: Installed on 2015-12-02 (180 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151027)
SourcePackage: python-qrencode
UpgradeStatus: No upgrade log present (probably fresh install) |
|
