I am using Python 3 on Raspberry PI and after a proper shutdown and power on of the system again I noticed that Python is no longer working. Note that it took several attempts to properly boot Raspberry PI (power on/off) due to a reason I am not sure of yet. After the boot I tried launching a custom program and the Python interpreter itself. In both cases I got ValueError: bad marshal data (unknown type code) I referred to the steps provided here to fix that problem: How to fix Python ValueError:bad marshal data?
What I did is as follows:
sudo find /usr -name '*.pyc' -delete without sudo I cannot delete
sudo update && sudo upgrade
pi#raspberrypi:~ $ python3 Fatal Python error: initsite: Failed to
import the site module Traceback (most recent call last): File
"/usr/lib/python3.7/site.py", line 79, in
import os File "/usr/lib/python3.7/os.py", line 191
def makedirs(name, mode=0o777, exist_ok=False):
"""makedirs(name [, mode=0o777][, exist_ok=False])
^ SyntaxError: invalid syntax
I am not able to resolve this issue. Do you have any suggestions? Can it be related with a symbolic link pointing the wrong direction or a file corruption?
Related
I've tweaked a copy of one of the Nsight Systems report scripts (gpukernsum), and I now want to run it myself. So, I write:
./gpukernsum.py report.sqlite
This doesn't work; I get:
ERROR: Script 'gpukernsum.py' encountered an internal error.
$ ./gpukernsum.py report.sqlite
File "./gpukernsum.py", line 40
"""
^
SyntaxError: invalid syntax
I know this is because f"""whatever""" is Python-3 syntax, so I change the script's hash-bang line from:
#!/usr/bin/env python
to:
#!/usr/bin/env python3
and now I get:
$ ./gpukernsum.py report.sqlite
Traceback (most recent call last):
File "/path/to/./gpukernsum.py", line 7, in <module>
import nsysstats
ModuleNotFoundError: No module named 'nsysstats'
So I added the relevant directory to the lookup path:
export PYTHONPATH="$PYTHONPATH:/opt/nvidia/nsight-systems/2022.1.1/host-linux-x64/python/lib"
and now I get:
$ ./gpukernsum.py report.sqlite
near "WITH": syntax error
... and I'm stuck. The relevant area of the code is:
and not a percentage of the application wall or CPU execution time.
"""
query_stub = """
WITH
summary AS (
SELECT
coalesce({NAME_COL_NAME}, demangledName) AS nameId,
i.e. the "WITH" is part of a string literal which is an SQL query. So, what's the problem? Is Python complaining? Is sqlite complaining?
Note:
Nsight Systems 2022.1.1
CentOS 7
I'm using the original gpukernsum.py code - I have not made any changes to it (other than as described above).
My system has Python 3.9.1 for python3.
A workaround answer:
Nsight Systems bundles its own version of Python, with lib and bin directories.
If you run your script with this specific version, having set PYTHONPATH as described in your question - then the script will work. It's what Nsight itself does, after all.
I've just installed virt-manager with pkgin on NetBSD 9.2 just because I want to emulate the virtual machines with qemu + nvmm on NetBSD 9.2. The installation of virt-manager went ok. But,when I ran it,an error came up :
netbsd-marietto# virt-manager
Traceback (most recent call last):
File "/usr/pkg/share/virt-manager/virt-manager.py", line 386, in <module>
main()
File "/usr/pkg/share/virt-manager/virt-manager.py", line 247, in main
from virtManager import cli
File "/usr/pkg/share/virt-manager/virtManager/cli.py", line 29, in <module>
import libvirt
ImportError: No module named libvirt
Googling a little bit maybe I've found the solution here :
https://www.unitedbsd.com/d/285-linux-user-and-netbsd-enthusiast-hoping-to-migrate-some-day
where "kim" said :
Looking at pkgsrc/sysutils/libvirt/PLIST it doesn't look like the package provides any Python bindings -- which is what the "ImportError: No module named libvirt" error message is about. You could try py-libvirt from pkgsrc-wip and see how that works out.
I tried to start the compilation like this :
netbsd-marietto# cd /home/mario/Desktop/pkgsrc-wip/py-libvirt
netbsd-marietto# make
but I've got this error :
make: "/home/mario/Desktop/pkgsrc-wip/py-libvirt/Makefile" line 15: Could not find ../../wip/libvirt/buildlink3.mk
make: "/home/mario/Desktop/pkgsrc-wip/py-libvirt/Makefile" line 16: Could not find ../../lang/python/distutils.mk
make: "/home/mario/Desktop/pkgsrc-wip/py-libvirt/Makefile" line 17: Could not find ../../mk/bsd.pkg.mk
make: Fatal errors encountered -- cannot continue
If u want to see the content of the Makefile,it is :
gedit /home/mario/Desktop/pkgsrc-wip/py-libvirt/Makefile
#$NetBSD: Makefile,v 1.32 2018/11/30 09:59:40 adam Exp $
PKGNAME= ${PYPKGPREFIX}-${DISTNAME:S/-python//}
DISTNAME= libvirt-python-5.8.0
CATEGORIES= sysutils python
MASTER_SITES= https://libvirt.org/sources/python/
MAINTAINER= pkgsrc-users#NetBSD.org
HOMEPAGE= https://libvirt.org/sources/python/
COMMENT= libvirt python library
LICENSE= gnu-lgpl-v2
USE_TOOLS+= pkg-config
.include "../../wip/libvirt/buildlink3.mk"
.include "../../lang/python/distutils.mk"
.include "../../mk/bsd.pkg.mk"
Can someone help me to fix the error ? very thanks.
You are getting those errors because your copy of pkgsrc wip is not inside a pkgsrc tree.
Please follow the pkgsrc wip documentation to correctly use pkgsrc wip. Especially look at the section titled Getting the "source".
In brief, assuming you have a copy of pkgsrc in /usr/pkgsrc and you want to use git to checkout pkgsrc wip, run these commands:
cd /usr/pkgsrc
git clone git://wip.pkgsrc.org/pkgsrc-wip.git wip
Then build py-libvirt with these commands:
cd /usr/pkgsrc/wip/py-libvirt
make
If it builds successfully, you could install it with:
cd /usr/pkgsrc/wip/py-libvirt
make install
https://raw.githubusercontent.com/paramiko/paramiko/master/demos/demo_server.py
I see the above demo_server of paramiko. But I don't see the instructions on how to run it. I run the following ./demo_server.py command. But once I run ssh robey#127.0.0.1 -p 2200, the server fails. Could anybody let me know the complete steps on how to run this example? Thanks.
$ python3 ./demo_server.py
Read key: 60733844cb5186657fdedaa22b5a57d5
Listening for connection ...
Got a connection!
*** Caught exception: <class 'ImportError'>: Unable to import a GSS-API / SSPI module!
Traceback (most recent call last):
File "./demo_server.py", line 140, in <module>
t = paramiko.Transport(client, gss_kex=DoGSSAPIKeyExchange)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/paramiko/transport.py", line 445, in __init__
self.kexgss_ctxt = GSSAuth("gssapi-keyex", gss_deleg_creds)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/paramiko/ssh_gss.py", line 107, in GSSAuth
raise ImportError("Unable to import a GSS-API / SSPI module!")
ImportError: Unable to import a GSS-API / SSPI module!
$ ssh robey#127.0.0.1 -p 2200
kex_exchange_identification: read: Connection reset by peer
I managed to get it to work, make sure to go through these steps (Thank you Sandeep for the pip insight), chances are you may be missing the Kerberos dependencies:
You may need to perform pip install gssapi in the CLI if that has not already been done (I'm using the Windows Command Prompt, Linux/WSL might need pip3 instead depending on your version of python)
From there you will need to import the gssapi library into the code at the top with the other imported libraries, so just call
import gssapi in demo_server.py
After running demo_server.py again, the CLI should eventually say something like it is missing files located in Program Files\ MIT\ Kerberos\ bin, as Kerberos is a dependency for gssapi, you can install it from here:
https://web.mit.edu/KERBEROS/dist/
Make sure you do custom install if you're not sure where it will be downloaded, so that you can set up the file location where the CLI says is missing in step 3 (Should automatically say Program Files\ MIT). I unchecked the boxes for auto-start and tickets, but not sure as to what your preferences may be. After all that, a computer restart is required.
I am getting following error even after having following packages installed. Recently os has been upgraded and python has been updated from 2.5 to 2.7 and before that application was using 2.7.11 which is installed on local folder.
After up gradation I am unable to run my scirpts and getting following ssl error.
File "/itStorage/tools/swutils/pylibs/shu/common.py", line 5, in <module>
import ssl
File "/itStorage/tools/swutils/deps/python_2.7.11/lib/python2.7/ssl.py", line 97, in
import _ssl # if we can't import it, let the error propagate
ImportError: libssl.so.6: cannot open shared object file: No such file or directory
After searching google it may be due to openssl packages or libssl path. we have every thing in place even after that we having issue.
[aafedc#afeae ~]$ sudo rpm -qa *openssl*
openssl-1.0.2k-8.el7.x86_64
openssl-devel-1.0.2k-8.el7.x86_64
openssl-libs-1.0.2k-8.el7.i686
openssl-libs-1.0.2k-8.el7.x86_64
openssl098e-0.9.8e-29.el7_2.3.i686
[abcd#abcd ~]$ sudo ls -l /usr/lib/libssl.so.6*
lrwxrwxrwx. 1 root root 16 May 25 03:34 /usr/lib/libssl.so.6 -> libssl.so.0.9.8e
any help is greatly appropriated!!..
Thanks in advance.
You could try to run the script using strace, then you should see what fails.. I'm not sure but I think it could be a missing dependency of libssl as well or permissions problem.
I followed this guide: guide to create a startupfile which excecutes a python file on startup.
in step 2 it says I have to test the startupfile I just created and suddently my script says:
Traceback (most recent call last):
File "Display.py", line 1, in <module>
import pyowm
ImportError: No module named pyowm
the python file works perfect if I run it directly.
what I allready tried: run pip again to see if the lib was okay
check the /usr/local/lib/python3.4/dist-packages folder to see if it was there and it is.
I think this is a python issue and not a RaspberryPi issue thats why I uploaded it here.
runned by:
sh launcher.sh
inside is:
#!/bin/sh
# launcher.sh
# navigate to home directory, then to this directory, then execute python script, then back home
cd /
cd /home/pi/arduino/Python/Main/Master
sudo python Display.py
cd /
Simple fix: define the version of python which will be used. It used python 2.7. Yet the lib was for 3.4.