I am trying to load sqlite 64 bit while running Python 2.7 64 bit. I can do this interactively, but, not from a script.
Interactive:
$ /c/Python27-64/python
Python 2.7.12 (v2.7.12:d33e0cf91556, Jun 27 2016, 15:24:40) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import sqlite3
>>>
From this script, one single line, the same as was done from the python shell:
import sqlite3
Run from command line:
$ /c/Python27-64/python test.py
Traceback (most recent call last):
File "test.py", line 1, in <module>
import sqlite3
File "c:\Python27-64\lib\sqlite3\__init__.py", line 24, in <module>
from dbapi2 import *
File "c:\Python27-64\lib\sqlite3\dbapi2.py", line 28, in <module>
from _sqlite3 import *
ImportError: DLL load failed: %1 is not a valid Win32 application.
The script is obviously finding a 32 bit dll. But why? What is the difference between interactive and from the single line script? How is the DLL search being modified?
In case anyone runs into this, the problem was the file _sqlite3.pyd in the directory I was running the script. Can someone explain why Python creates it's own version of the Windows dll? Is this simply wrapped so that Python can make calls into it? Perhaps a ctypes wrapper?
Related
I'm working with pykd and am able to connect it with my debugger (windbg) but for some reason I'm unable to process any command with pykd.dbgCommand not sure what the issue is as I've tried multiple methods to try and resolve the issue:
Reinstall pydk + python
tried on python2.7, python3.5, python3.8
tried a different system + different debug session
when I tried to run the command on the windbg session it was able to produce the results but somehow it's now able to do that from python console.
pykd.dbgCommand("!analyze -v")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
pykd.DbgException: Call IDebugClient::GetOutputCallbacks failed
HRESULT 0x80010107
any help would be appreciated.
thanks to everyone answering in advance.
I tried to run dbgCommand('!analyze -v') with three different dump from python REPL:
usermode native dump: OK
kernel mode dump: OK
managed app dump:
0:000> !py
Python 3.8.2 (tags/v3.8.2:7b3ab59, Feb 25 2020, 23:03:10) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> dbgCommand('analyze -v')
Traceback (most recent call last):
File "<console>", line 1, in <module>
pykd.DbgException: Call IDebugControl::ExecuteWide failed
HRESULT 0x80040205
Then I run this script:
import pykd
a = pykd.dbgCommand('!analyze -v')
print(a)
this script works OK with all of these dump.
I believe there is a bug. I've opened an issue:
https://githomelab.ru/pykd/pykd-ext/-/issues/15
Can you provide a dump which reproduce the bug to the pykd issues tracker.
I'm trying to import selenium my first time into my new Python project. But when I run the program it does not work and shows the following message below.
I checked if python and selenium is installed correctly. I even tried to reinstall it but still, the same message shows up. I might have made a stupid mistake somewhere as I'm just starting off with Python and Selenium. Does anyone have a solution?
My code:
from selenium import webdriver
from selenium.webdriver.comma.keys import Keys
driver = webdriver.Firefox()
driver.get("http://www.python.org")
This is the output:
Python 3.7.3 (v3.7.3:ef4ec6ed12, Mar 25 2019, 21:26:53) [MSC v.1916 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license()" for more information.
>>>
RESTART: C:\Users\Henryk\Documents\Selenium sample
project\SeleniumSampleProject.py
Traceback (most recent call last):
File "C:\Users\Henryk\Documents\Selenium sample
project\SeleniumSampleProject.py", line 2, in <module>
from selenium.webdriver.comma.keys import Keys
ModuleNotFoundError: No module named 'selenium.webdriver.comma'
>>>
Try to common:
from selenium.webdriver.common.keys import Keys
I'm trying to use generateDS under windows, which uses os.tmpfile. Unfortunately, os.tmpfile doesn't work for me:
(oneclickcos) C:\Users\Marcin\Documents\oneclickcos\xsd>python
Python 2.7.2 (default, Jun 12 2011, 14:24:46) [MSC v.1500 64 bit (AMD64)] on win
32
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.tmpfile()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OSError: [Errno 13] Permission denied
>>>
I've got all my temp directories set with full control for everyone, so that shouldn't be the problem.
What could be causing this?
Run the script as administrator (right click on the script and select 'run as administrator'), the script lacks the permissions to execute os.tmpfile().
Edit:
As I see you're using the interpreter, simply run the interpreter as administrator. If you're accessing it though a terminal, running the terminal as administrator should be sufficient.
As Griffin pointed out the problem is that the os.tmpfile() tries to create a file in the root directory. If you don't like to run the script as administrator you can use os.tmpnam() and handle the file yourself.
Warning: Use of tmpnam() is vulnerable to symlink attacks
I have an error when i used pyqrcode.
[root#localhost python2.6]# python
Python 2.6.5 (r265:79063, Sep 7 2010, 07:31:57)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import qrcode
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python2.6/site-packages/qrcode-0.2.1-py2.6-linux-x86_64.egg/qrcode/__init__.py", line 6, in <module>
from qrcode import _qrcode
ImportError: cannot import name _qrcode
How to resolve above error?
I am referring pyqrcode from http://pyqrcode.sourceforge.net/
Thanks,
Manu
After the installation of PIL-1.1.7 and JCC-2.14, I've tried to install pyqrcode-0.2.1 from sources as you did, and also ran into the same error :
ImportError: No module named _qrcode. But then I've noticed that _qrcode is actually a lib (_qrcode.so). So I've tried to add it on my library path :
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/python2.7/site-packages/qrcode-0.2.1-py2.7-linux-x86_64.egg/qrcode/
And it worked ! Well actually, not quite, I ran into another error :
AttributeError: 'module' object has no attribute '_setExceptionTypes'
So I've edited the __init__.py file
# probably located under a path like this for linux
/usr/local/lib/python2.7/site-packages/qrcode-0.2.1-py2.7-linux-x86_64.egg/qrcode/
# or under a path like this for a Mac
/Library/Python/2.7/site-packages/qrcode-0.2.1-py2.7-macosx-10.7-intel.egg/qrcode/
and commented out line 21 :
# _qrcode._setExceptionTypes(JavaError, InvalidArgsError)
Then I was able to run their simple example :
#!/usr/bin/env python
# coding: utf-8
#
# pyqrcode sample encoder
import sys, qrcode
e = qrcode.Encoder()
image = e.encode('woah!', version=15, mode=e.mode.BINARY, eclevel=e.eclevel.H)
image.save('out.png')
(source : http://pyqrcode.sourceforge.net/)
Hope it helps,
I am inspecting the JSON module of python 3.1, and am currently in /Lib/json/scanner.py. At the top of the file is the following line:
from _json import make_scanner as c_make_scanner
There are five .py files in the module's directory: __init__ (two leading and trailing underscores, it's formatting as bold), decoder, encoder, scanner and tool. There is no file called "json".
My question is: when doing the import, where exactly is "make_scanner" coming from?
Yes, I am very new to Python!
It's coming from a C-compiled _json.pyd (or _json.so, etc, etc, depending on the platform) that lives elsewhere on the sys.path. You can always find out where that is in your specific Python installation by importing the module yourself and looking at its __file__, e.g.:
>>> import _json
>>> _json.__file__
'/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/_json.so'
As you see, in my installation of Python 2.6, _json comes from the lib-dynload subdirectory of lib/python2.6, and the extension used on this platform is .so.
It may be coming from a file, or it may be built-in. On Windows, it appears to be built-in.
Python 3.1.2 (r312:79149, Mar 21 2010, 00:41:52) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import _json
>>> _json.__file__
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute '__file__'
and there is no _json.pyd or _json.dll in the offing.
If you want to see the source, having a binary file on your machine or not is irrelevant -- you'll need the SVN browser.