I am in need to run the Software Sources GUI (no, my job cannot be completed through apt or aptitude). Since the window would never load if I navigated from the launcher, I decided to see what happens if I were to run it from the command line:
jason#jason-mint:~$ software-sources
File "/usr/lib/linuxmint/mintSources/mintSources.py", line 48
def async(func):
^
SyntaxError: invalid syntax
The function in the file mintSources.py looks like this:
# Used as a decorator to run things in the background
def async(func):
def wrapper(*args, **kwargs):
thread = threading.Thread(target=func, args=args, kwargs=kwargs)
thread.daemon = True
thread.start()
return thread
return wrapper
At the very top, the shebang says: #!/usr/bin/python3. Since my default Python is Python 2.7, I changed the shebang to #!/usr/bin/python to see what happens, only to have a new error this time:
jason#jason-mint:/etc/apt$ software-sources
Traceback (most recent call last):
File "/usr/lib/linuxmint/mintSources/mintSources.py", line 6, in <module>
import configparser
ImportError: No module named configparser
Which means it failes in import configparser, clearly an indication that python2.7 (my default) will not work. To clarify, I have both Python2 and Python3 available:
jason#jason-mint:~$ python --version
Python 2.7.16
jason#jason-mint:~$ python2
Python 2.7.16 (default, Apr 6 2019, 01:42:57)
[GCC 8.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> quit()
jason#jason-mint:~$ python3
Python 3.7.3rc1 (default, Mar 13 2019, 11:01:15)
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> quit()
jason#jason-mint:~$ python
Python 2.7.16 (default, Apr 6 2019, 01:42:57)
[GCC 8.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
Some system info if it helps:
jason#jason-mint:~$ cat /etc/debian_version
buster/sid
jason#jason-mint:~$ uname -r
4.19.0-4-amd64
Related
tomcat user or for that matter any user using python2 or python3 is unable to find boto3 module, whereas in running python2 or 3 from root works fine.
-bash-4.2$ python
Python 2.7.5 (default, Nov 16 2020, 22:23:17)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-44)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import boto3
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named boto3
>>>
-bash-4.2$ whoami
tomcat
root user works
[root#server-name]# python
Python 2.7.5 (default, Nov 16 2020, 22:23:17)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-44)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import boto3
>>>
I have been trying on setup PIL module on my Ubuntu System and it has been giving a lots of error. Finally , i am getting issue as:
when i try to run python from /home/ubuntu, it gives me error as:
ubuntu#ip-<server>:~$ python
Python 2.7.12 (default, Apr 15 2020, 17:07:12)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from PIL import Image
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "PIL/Image.py", line 90, in <module>
from . import _imaging as core
ImportError: cannot import name _imaging
but if I run the code from /usr/local, it does not return any error:
ubuntu#ip-<server>:~$ cd /usr/local/
ubuntu#ip-<server>:/usr/local$ python
Python 2.7.12 (default, Apr 15 2020, 17:07:12)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from PIL import Image
>>>
there might be an issue with the path or the permission of the required libraries. But i am not sure how to fix this.
I am executing my script from Jenkins and it throws error over there. Please guide how to fix.
Simple example:
File structure is:
test/lib/f1.py
test/lib/f2.py
File contents:
$ cat lib/f1.py
from f2 import bar
def foo(a):
print(1+bar(a))
$ cat lib/f2.py
def bar(a):
return a
So f1.py defines foo, which relies on bar, defined in f2.py.
Now, loading f1.py works just fine when inside test/lib/:
$ python3
Python 3.5.2 (default, Nov 12 2018, 13:43:14)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from f1 import foo
>>> foo(1)
2
However, when loading from outside test/lib/ (say from test/), this fails with an import error:
$ python3
Python 3.5.2 (default, Nov 12 2018, 13:43:14)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from lib.f1 import foo
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/tmp/pymod/lib/f1.py", line 1, in <module>
from f2 import bar
ImportError: No module named 'f2'
>>> Quit (core dumped)
Moving the code from f2.py in f1.py fixes the issue, but I don't want to do that.
Why am I getting this error and how can I avoid it?
Define the folder where it should look for the modules:
import sys
sys.path.append('test')
from lib.f1 import foo
I installed Twilio:
pip3 install twilio
But it will run only from the Python 3 Applications folder.
// ♥ python3
Python 3.7.1 (v3.7.1:260ec2c36a, Oct 20 2018, 03:13:28)
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more
information.
>>> import twilio
>>> print(twilio.__version__)
6.21.0
Here is what I get from any other folder:
Python 3.7.1 (v3.7.1:260ec2c36a, Oct 20 2018, 03:13:28)
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import twilio
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/davidtannenbaum/Dropbox (Personal)/pythonpractice/twilio.py", line 2, in <module>
print(twilio.__version__)
AttributeError: module 'twilio' has no attribute '__version__'
Anyone know why it works in the Python 3.7 directory and gives an error anywhere else? How do I fix this?
I get an ImportError when I run a script that I can't reproduce in a Python interpreter.
$ head -6 bin/taglint
#!/usr/bin/env python
#
import re
from lsaf.lsaf import file_info, error, exit
$ taglint
Traceback (most recent call last):
File "/home/ernest/bin/taglint", line 5, in <module>
from lsaf.lsaf import file_info, error, exit
ImportError: No module named lsaf
However, the import works fine in an interpreter:
$ /usr/bin/env python
Python 2.7.3rc2 (default, Apr 22 2012, 22:30:17)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from lsaf.lsaf import file_info, error, exit
>>>
What is happening here?
Additional info:
Python 2.7.3rc2 (default, Apr 22 2012, 22:30:17)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import lsaf; print(lsaf)
<module 'lsaf' from '/home/ernest/lib/python/lsaf/__init__.pyc'>
The PYTHONPATH environment variable is set to PYTHONPATH=/home/ernest/lib/python.
It might be an issue with sys.path
check your lsaf
May beYou didn't name your script by lsaf.py
rename it and it will work, your script tries to import itself, but there is no package in lsaf in your own script. importception