I have put down a Django project I was working on for a couple months, when I attempted to re run the server I got this error:
ValueError: source code string cannot contain null bytes
The Traceback is:
C:\Users\Broja\Desktop\mynewenv\computersite>manage.py runserver
Traceback (most recent call last):
File "C:\Users\Broja\Desktop\mynewenv\computersite\manage.py", line 8, in
<module>
from django.core.management import execute_from_command_line
File "C:\Users\Broja\AppData\Local\Programs\Python\Python35\lib\site-
packages\django\__init__.py", line 3, in <module>
from django.utils.version import get_version
ValueError: source code string cannot contain null bytes
I am not too familiar with the Django Framework so this error confuses me, any help would go a long way. Thanks.
Just convert it to UTF-8. That worked for me :)
Anyone who is looking for a simple solution in windows OS.
Just edit the target file(the file which is causing the issue) in Notepad.
Click File.
Click Save As.
Along the Save Button, there is an option for Encoding, just select
UTF-8 and select All Files option from the Save As Type option and
enjoy
Related
I have a script named requests.py that needs to use the third-party requests package. The script either can't import the package, or can't access its functionality.
Why isn't this working, and how do I fix it?
Trying a plain import and then using the functionality results in an AttributeError:
import requests
res = requests.get('http://www.google.ca')
print(res)
Traceback (most recent call last):
File "/Users/me/dev/rough/requests.py", line 1, in <module>
import requests
File "/Users/me/dev/rough/requests.py", line 3, in <module>
requests.get('http://www.google.ca')
AttributeError: module 'requests' has no attribute 'get'
In more recent versions of Python, the error message instead reads AttributeError: partially initialized module 'requests' has no attribute 'get' (most likely due to a circular import).
Using from-import of a specific name results in an ImportError:
from requests import get
res = get('http://www.google.ca')
print(res)
Traceback (most recent call last):
File "requests.py", line 1, in <module>
from requests import get
File "/Users/me/dev/rough/requests.py", line 1, in <module>
from requests import get
ImportError: cannot import name 'get'
In more recent versions of Python, the error message instead reads ImportError: cannot import name 'get' from partially initialized module 'requests' (most likely due to a circular import) (/Users/me/dev/rough/requests.py).
Using from-import for a module inside the package results in a different ImportError:
from requests.auth import AuthBase
Traceback (most recent call last):
File "requests.py", line 1, in <module>
from requests.auth import AuthBase
File "/Users/me/dev/rough/requests.py", line 1, in <module>
from requests.auth import AuthBase
ImportError: No module named 'requests.auth'; 'requests' is not a package
Using a star-import and then using the functionality raises a NameError:
from requests import *
res = get('http://www.google.ca')
print(res)
Traceback (most recent call last):
File "requests.py", line 1, in <module>
from requests import *
File "/Users/me/dev/rough/requests.py", line 3, in <module>
res = get('http://www.google.ca')
NameError: name 'get' is not defined
This happens because your local module named requests.py shadows the installed requests module you are trying to use. The current directory is prepended to sys.path, so the local name takes precedence over the installed name.
An extra debugging tip when this comes up is to look at the Traceback carefully, and realize that the name of your script in question is matching the module you are trying to import:
Notice the name you used in your script:
File "/Users/me/dev/rough/requests.py", line 1, in <module>
The module you are trying to import: requests
Rename your module to something else to avoid the name collision.
Python may generate a requests.pyc file next to your requests.py file (in the __pycache__ directory in Python 3). Remove that as well after your rename, as the interpreter will still reference that file, re-producing the error. However, the pyc file in __pycache__ should not affect your code if the py file has been removed.
In the example, renaming the file to my_requests.py, removing requests.pyc, and running again successfully prints <Response [200]>.
The error occurs because a user-created script has a name-clash with a library filename. Note, however, that the problem can be caused indirectly. It might take a little detective work to figure out which file is causing the problem.
For example: suppose that you have a script mydecimal.py that includes import decimal, intending to use the standard library decimal library for accurate floating-point calculations with decimal numbers. That doesn't cause a problem, because there is no standard library mydecimal. However, it so happens that decimal imports numbers (another standard library module) for internal use, so a script called numbers.py in your project would cause the problem.
In one especially pernicious case, having a file named token.py in a project (or the current working directory, when starting up Python in interactive mode) causes the interactive help to break:
$ touch token.py
$ python
Python 3.8.10 (default, Nov 14 2022, 12:59:47)
[GCC 9.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> help
Type help() for interactive help, or help(object) for help about object.
>>> help()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.8/_sitebuiltins.py", line 102, in __call__
import pydoc
File "/usr/lib/python3.8/pydoc.py", line 66, in <module>
import inspect
File "/usr/lib/python3.8/inspect.py", line 40, in <module>
import linecache
File "/usr/lib/python3.8/linecache.py", line 11, in <module>
import tokenize
File "/usr/lib/python3.8/tokenize.py", line 35, in <module>
from token import EXACT_TOKEN_TYPES
ImportError: cannot import name 'EXACT_TOKEN_TYPES' from 'token' (/current/working/directory/token.py)
The traceback tells us all we need to know: calling help triggers a deferred import of the standard library pydoc, which indirectly attempts to import the standard library token, but finds our token.py which doesn't contain the appropriate name. In older versions of Python, it was even worse: tokenize would do a star-import from token, and then its top-level code would try to use a name defined there, resulting in NameError - and a stack trace not mentioning the file name token.py.
If you still encounter problems like this after tracking own and renaming or removing the appropriate .py files in your project, also check for .pyc files that Python uses to cache bytecode compilation when importing modules. In 3.x, these will be stored in folders with the special name __pycache__; it is safe to delete such folders and files, and possible to suppress them (but you normally won't want to).
I'm trying to build the PiPhone ^1, but when I execute python piphone.py, I receive the following:
I cannot seem to find anyone else who has experienced this problem. What are ways you all suggest I resolve this?
https://github.com/climberhunt/PiPhone
I've used pip uninstall serial but I haven't gotten very far solution-wise.
Traceback (most recent call last):
File "ttest.py", line 2, in <module>
import serial
File "/home/pi/.local/lib/python2.7/site-
packages/serial/__init__.py", line 10, in <module>
from . import utilities, abc, model, marshal, errors,
properties, meta, hooks, test, request
File "/home/pi/.local/lib/python2.7/site-
packages/serial/model.py", line 11, in <module>
from .utilities.compatibility import backport,
BACKWARDS_COMPATIBILITY_IMPORTS
ImportError: No module named utilities.compatibility
You installed the wrong package. You have installed serial, which is a Python package to handle object serialisation and deserialisation from and to YAML, JSON and XML and appears to be broken at the moment (I don't think the author is all that experienced in Python package development yet). Someone else already filed an issue with the package to have it renamed.
You want to install pyserial instead, which is a library to handle serial port connections.
I am currently using Python 2.7 and my OS is Windows 7. While attempting to use the Bloomberg API I am getting this error:
Traceback (most recent call last):
File "datagrab.py", line 1, in <module>
import blpapi, time, json
File "C:\Python27\lib\blpapi\__init__.py", line 5, in <module>
from .internals import CorrelationId
File "C:\Python27\lib\blpapi\internals.py", line 50, in <module>
_internals = swig_import_helper()
File "C:\Python27\lib\blpapi\internals.py", line 42, in swig_import_helper
import _internals
ImportError: No module named _internals
I have set my path variable to point to blpapi3_64.dll and also updated my bloomberg terminal. I have also moved the local blpapi API to a different directory but still the problem exists.
I am kind of new to this API in general. So can someone please guide me?
Thank you in advance!
From your question is sounds like maybe you have tried this, but just outlining one possible solution from the README in the Python Supported Release release available here.
Note that many Python installations add the current directory to the
module search path. If the Python interpreter is invoked from the
installer directory, such a configuration will attempt to use the
(incomplete) local blpapi directory as a module. If the above
import line fails with the message Import Error: No module named
_internals, move to a different directory before invoking python.
I know this question is a bit stale, but in case people end up here like me. Do you have the C++ version of blpapi? it is a requirement for the python api as mentioned here: https://www.bloomberg.com/professional/support/api-library/
so download the C++ zip installer, extract somewhere, and then add it as an environment variable so that the python api can find it:
Environment variable name: BLPAPI_ROOT
Value: C:\blp\blpapi_cpp_3.8.18.1 (THIS IS WHERE MINE IS INSTALLED, YOUR VALUE HERE MAY BE DIFFERENT)
Hope that helps!
I have a python script that auto read and export particular offsets from a game. It's made with the help of IDA 6.6 and it's python scripts/libs. Now I am not very experienced with python and I don't know why I get this errors:
Could not import idaapi. Running in 'pydoc mode'.
Traceback (most recent call last): File "C:\Users\1234\Desktop\idapyhon\offsets.py", line 1, in from idc import BADADDR, INF_BASEADDR, SEARCH_DOWN, FUNCATTR_START, FUNCATTR_END File "D:\prg\IDA 6.6\python\idc.py", line 41, in EA64 = idaapi.BADADDR == 0xFFFFFFFFFFFFFFFFL NameError: name 'idaapi' is not defined
offsets.py:
pastebin.com/sp08SiS9
idc.py:
pastebin.com/6eJRtphF
What this script must do is get all the offsets from the game and place them in txt file in the "output" dir.
Let me know if you need any other code.
In order to run a python script as an IDAPython script, it must be run from within IDA, either manually or using the basic headless command line arguments IDA supports.
I'm trying to set up a Django app to run on GAE, and am using the on_production_server test to choose between dev vs. production settings in settings.py.
However, when I run
python manage.py runserver
I get:
Traceback (most recent call last):
File "manage.py", line 11, in <module>
import settings
File "/home/guillaume/myproject/settings.py", line 10, in <module>
from djangoappengine.utils import on_production_server, have_appserver
File "/home/guillaume/myproject/djangoappengine/utils.py", line 18, in <module>
'Error was: %s' % e)
Exception: Could not get appid. Is your app.yaml file missing?
Error was: No module named antlr3
I tried adding the following to settings.py:
import sys
sys.path.append('/usr/local/google_appengine/lib/')
And this line to the very end of .profile:
PATH="$PATH:/usr/local/google_appengine/"
But neither gets rid of the error. I'm really new to working with paths so I'm kind of fumbling around blindly here. Can anyone help?
Python2.5v or 2.7v?
And what about GAE SDK version?
Did you try this?
Saw this question while having the same problem. Solved it by installing antlr 3.1.1 python runtime from Here.