Installed Jython from the installer.
Set the Path as follows /Users/user/jython2.7.0/bin.
When tried to run Jython, received the following error.
MacBook-Pro:~ user$ jython
Traceback (most recent call last):
File "/Users/user/jython2.7.0/bin/jython", line 444, in <module>
main(sys.argv)
File "/Users/user/jython2.7.0/bin/jython", line 431, in main
os.execvp(command[0], command[1:])
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py", line 346, in execvp
_execvpe(file, args)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py", line 370, in _execvpe
func(file, *argrest)
OSError: [Errno 2] No such file or directory
Tried uninstalling other packages installed through Homebrew. But nothing positive.
Jython runs with the command java -jar jython.jar from the installation directory.
Tried running on a clean Macbook, everything runs fine.
Resolved the problem by pointing JAVA_HOME to jdk1.8.0_131 rather than jdk9.0.4. Not sure why this solution works.
Related
I'm quite new to Scrapy and found this error baffling me big time. I work on a Windows machine and use a Ubuntu subsystem (WSL) to do all my development work. I have created a virtual environment and trying to start learning Scrapy, however, whenever I am in the virtual environment and try to create a new project, the following error shows up and the files cannot be created successfully.
OS: Windows 10
Environment: Windows 10 - WSL Ubuntu 20.04.1
Python: Python 3.8.5
Recreate issue:
python3 -m venv /Directory/
source /Directory/bin/activate
(venv) pip install scrapy
(venv) scrapy startproject /directory/
Error Message:
Traceback (most recent call last):
File "/mnt/c/Users/.../bin/scrapy", line 10, in <module>
sys.exit(execute())
File "/mnt/c/Users/.../lib/python3.8/site-packages/scrapy/cmdline.py", line 145, in
execute
_run_print_help(parser, _run_command, cmd, args, opts)
File "/mnt/c/Users/.../lib/python3.8/site-packages/scrapy/cmdline.py", line 100, in
_run_print_help
func(*a, **kw)
File "/mnt/c/Users/.../lib/python3.8/site-packages/scrapy/cmdline.py", line 153, in
_run_command
cmd.run(args, opts)
File "/mnt/c/Users/.../lib/python3.8/site-packages/scrapy/commands/startproject.py", line 110, in run
self._copytree(self.templates_dir, abspath(project_dir))
File "/mnt/c/Users/.../lib/python3.8/site-packages/scrapy/commands/startproject.py", line 83, in _copytree
self._copytree(srcname, dstname)
File "/mnt/c/Users/.../lib/python3.8/site-packages/scrapy/commands/startproject.py", line 83, in _copytree
self._copytree(srcname, dstname)
File "/mnt/c/Users/.../lib/python3.8/site-packages/scrapy/commands/startproject.py", line 88, in _copytree
copystat(src, dst)
File "/usr/lib/python3.8/shutil.py", line 376, in copystat
_copyxattr(src, dst, follow_symlinks=follow)
File "/usr/lib/python3.8/shutil.py", line 326, in _copyxattr
os.setxattr(dst, name, value, follow_symlinks=follow_symlinks)
PermissionError: [Errno 13] Permission denied: '/mnt/c/Users/.../module/spiders'
The strange thing is that when I am not using a virtual environment, it works just fine. Is there any way I could fix this?
Thank you so much.
Instead of
python3 -m venv /Directory/
Try
python3 -m venv Directory
The former one puts your virtual environment as directory under / instead of in the current directory.
(Please don't call your virtual environment Directory ;) )
I am able to run my exe file but my scripts has multiple pip libraries for it to work. I always get this error when running my script.
Exception in thread Thread-1:
Traceback (most recent call last):
File "threading.py", line 932, in _bootstrap_inner
File "threading.py", line 870, in run
File "AIO_Bot.py", line 265, in main_function
File "cloudscraper/__init__.py", line 665, in create_scraper
File "cloudscraper/__init__.py", line 120, in __init__
File "cloudscraper/user_agent/__init__.py", line 20, in __init__
File "cloudscraper/user_agent/__init__.py", line 77, in loadUserAgent
FileNotFoundError: [Errno 2] No such file or directory: '/var/folders/8g/gkf53znx7_7405c26w344ftw0000gn/T/_MEIujM2ll/cloudscraper/user_agent/browsers.json'
Finished in 0.0 second(s)
If anyone knows how to fix this please help!
It seems that your browswers.json is expected to be found in a relative path from the "exe" (cloudscraper/user_agent) when it is not the case when it is really a exe file. You have to modify your pyinstaller build command to include that file in the package. Add
--add-data '/lib/python3.8/site-packages/cloudscraper/user_agent/browsers.json:cloudscraper/user_agent' and it should work. (replace : with ; on Windows)
You can refer to https://pyinstaller.readthedocs.io/en/stable/spec-files.html#adding-data-files for more details.
It seems your script/exe is looking for a file named "browsers.json".
Locate it and try putting it in the same folder as your created *.exe
The file is not being located because you are searching through a path that can not be opened. If your script is on the same level of the path then you would only have to do this
(browsers.json)
to fix this just exclude the directory path
mv /lib/python3.8/site-packages/cloudscraper/user_agent/browsers.json /var/folders/8g/gkf53znx7_7405c26w344ftw0000gn/T/_MEIujM2ll/cloudscraper/user_agent/
if this does not work pip install cloudscraper in terminal instead because pycharms assigniing the file to it's own enviroment
So I've had Python 3.6 on my Windows 10 computer for a while now, and today I just downloaded and installed the graphviz 0.8.2 (https://pypi.python.org/pypi/graphviz) package via the admin commandline with:
pip3 install graphviz
It was only after this point that I downloaded the Graphviz 2.38 MSI installer file and installed the program at:
C:\Program Files (x86)\Graphviz2.38
So then I tried to run this simple Python program:
from graphviz import Digraph
dot = Digraph(comment="The round table")
dot.node('A', 'King Arthur')
dot.node('B', 'Sir Bedevere the Wise')
dot.node('L', 'Sir Lancelot the Brave')
dot.render('round-table.gv', view=True)
But unfortunately, I received the following error when I try to run my Python program from commandline:
Traceback (most recent call last):
File "C:\Program Files\Python36\lib\site-packages\graphviz\backend.py", line 124, in render
subprocess.check_call(args, startupinfo=STARTUPINFO, stderr=stderr)
File "C:\Program Files\Python36\lib\subprocess.py", line 286, in check_call
retcode = call(*popenargs, **kwargs)
File "C:\Program Files\Python36\lib\subprocess.py", line 267, in call
with Popen(*popenargs, **kwargs) as p:
File "C:\Program Files\Python36\lib\subprocess.py", line 709, in __init__
restore_signals, start_new_session)
File "C:\Program Files\Python36\lib\subprocess.py", line 997, in _execute_child
startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "D:\foldername\testing.py", line 11, in <module>
dot.render('round-table.gv', view=True)
File "C:\Program Files\Python36\lib\site-packages\graphviz\files.py", line 176, in render
rendered = backend.render(self._engine, self._format, filepath)
File "C:\Program Files\Python36\lib\site-packages\graphviz\backend.py", line 127, in render
raise ExecutableNotFound(args)
graphviz.backend.ExecutableNotFound: failed to execute ['dot', '-Tpdf', '-O', 'round-table.gv'], make sure the Graphviz executables are on your systems' PATH
Notice how what I've asked seems VERY similar to this question asked here:
"RuntimeError: Make sure the Graphviz executables are on your system's path" after installing Graphviz 2.38
But for some reason, adding those paths (suggested in the solutions at the link above) to the system variables isn't working, and I don't know why! I tried restarting the computer after adding the paths as well, still to no success. See the image below:
Although the other suggested solution, which was to add these few lines in front of my Python code, did work:
import os
os.environ["PATH"] += os.pathsep + 'C:/Program Files (x86)/Graphviz2.38/bin/'
But here's the issue: I don't understand why adding to the environment variables didn't work, and this is my primary concern. So my question is this: why did adding those lines of code in front of the Python script work but changing the environment variables didn't? What do I need to do to get my script to run without adding those lines of code in front?
Can you please post the output you get when you type SET in a cmd window after setting the PATH environment variable?
Does it contain C:/Program Files (x86)/Graphviz2.38/bin/ ?
A cmd window must be restarted before updated environment variables become effective!
I have a Python 2 package that I'm trying to upgrade to Python 3. It was written by someone who used to work on the same team I'm on now but who is no longer with the company, and unfortunately nobody left on the team is able to help out.
After running 2to3 on the files of the package, I ran python setup.py sdist to create a package, placed the package in a local repository, then attempted to use pip install to install the package. It ended up erroring out with the following:
Exception:
Traceback (most recent call last):
File "/home/user/project/lib/python3.5/site-packages/pip/basecommand.py", line 223, in main
status = self.run(options, args)
File "/home/user/project/lib/python3.5/site-packages/pip/commands/install.py", line 297, in run
root=options.root_path,
File "/home/user/project/lib/python3.5/site-packages/pip/req/req_set.py", line 622, in install
**kwargs
File "/home/user/project/lib/python3.5/site-packages/pip/req/req_install.py", line 808, in install
self.move_wheel_files(self.source_dir, root=root)
File "/home/user/project/lib/python3.5/site-packages/pip/req/req_install.py", line 1003, in move_wheel_files
isolated=self.isolated,
File "/home/user/project/lib/python3.5/site-packages/pip/wheel.py", line 340, in move_wheel_files
assert info_dir, "%s .dist-info directory not found" % req
AssertionError: my-package-name .dist-info directory not found
The old Python 2 version of the package didn't have anything called .dist-info in the .tgz archive, and it installed just fine. Does anyone know what's going on here and how to fix it?
In my case this was resolved by deleting AppData\Local\pip\Cache folder (windows). Should be fairly similar for other operating systems.
Trying to use virutalenv version 1.6.4 (the latest at writing this post) on 10.7, Lion with yes Xcode 4 installed from mac app store, yet i'm getting the below error message:
New python executable in SUPENV/bin/python
Error [Errno 2] No such file or directory while executing command install_name_tool -change /System/Library/Fram.../Versions/2.7/Python #executable_path/../.Python SUPENV/bin/python
Could not call install_name_tool -- you must have Apple's development tools installed
Traceback (most recent call last):
File "/usr/local/bin/virtualenv", line 8, in <module>
load_entry_point('virtualenv==1.6.4', 'console_scripts', 'virtualenv')()
File "/Library/Python/2.7/site-packages/virtualenv-1.6.4-py2.7.egg/virtualenv.py", line 810, in main
never_download=options.never_download)
File "/Library/Python/2.7/site-packages/virtualenv-1.6.4-py2.7.egg/virtualenv.py", line 901, in create_environment
site_packages=site_packages, clear=clear))
File "/Library/Python/2.7/site-packages/virtualenv-1.6.4-py2.7.egg/virtualenv.py", line 1166, in install_python
py_executable])
File "/Library/Python/2.7/site-packages/virtualenv-1.6.4-py2.7.egg/virtualenv.py", line 843, in call_subprocess
cwd=cwd, env=env)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 672, in __init__
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1202, in _execute_child
OSError: [Errno 2] No such file or directory
Any hints on how to solve this problem... I guess the first would be to check if install_name_tool is present on my system, and then force virtualenv to use it...
thanks in advance!
You need to both install XCode, run it, and select the optional "command line tools" package and then install those. In more detail:
Download XCode from the App Store
Run the downloaded XCode binary from Applications or Launchpad
Select XCode->Preferences, then choose the "Downloads" tab
Click on the "Command Line Tools" selection and install those
Did you actually install Xcode 4? Downloading it from the App Store only downloads the installer for it. Then you need to run the installer; you should find the installer downloaded to /Applications. After you run it, you should find install_name_tool here:
$ which install_name_tool
/usr/bin/install_name_tool
With newer versions of virtualenv (at least from 1.8.4 on) it is no longer necessary to install the "Command Line Tools" package from Xcode.