Im trying to run a python Server using CherryPy for a WebSite but when I run it this error pops up.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.10/dist-packages/cherrypy/_cprequest.py", line 638, in respond
self._do_respond(path_info)
File "/usr/local/lib/python3.10/dist-packages/cherrypy/_cprequest.py", line 694, in _do_respond
self.hooks.run('before_handler')
File "/usr/local/lib/python3.10/dist-packages/cherrypy/_cprequest.py", line 95, in run
self.run_hooks(iter(sorted(self[point])))
File "/usr/local/lib/python3.10/dist-packages/cherrypy/_cprequest.py", line 117, in run_hooks
hook()
File "/usr/local/lib/python3.10/dist-packages/cherrypy/_cprequest.py", line 65, in __call__
return self.callback(**self.kwargs)
File "/usr/local/lib/python3.10/dist-packages/cherrypy/_cptools.py", line 280, in _lock_session
cherrypy.serving.session.acquire_lock()
File "/usr/local/lib/python3.10/dist-packages/cherrypy/lib/sessions.py", line 550, in acquire_lock
self.lock = zc.lockfile.LockFile(path)
File "/usr/local/lib/python3.10/dist-packages/zc/lockfile/__init__.py", line 117, in __init__
super(LockFile, self).__init__(path)
File "/usr/local/lib/python3.10/dist-packages/zc/lockfile/__init__.py", line 87, in __init__
fp = open(path, 'a+')
FileNotFoundError: [Errno 2] No such file or directory: '/var/www/html/cncsessions\\/session-73ab2ecbe9bd50153b4f20828fcc08bff6e9cd6e.lock'
It's my first time using this module and I don't know what's wrong.
I'm using Ubuntu 22, Python 3.10.6
Hard to say without seeing your exact code that this is calling.
Judging by the Error you are trying to use Sessions.
The sessions are looking for
/var/www/html/cncsessions
To place the session files in
But it gives an error. It looks like the path might be wrong. There's a double backslash at the end there and a forward slash.
\\/
If you haven't given up on this/figured it out already I would try changing this path to just this
/var/www/html/cncsessions
Also be sure you do not store your session data in your web root. Looks like from that path you might be doing that! Anything in a webroot will be served via public webserver. There's little to no chance anyone would guess the file names though.
Related
I am trying to use pyinstaller to create a .exe for someone else to run. The program uses mysql to ping a sql database and return information from it. When I run the program in PyCharm and with pyinstaller --onedir, everything works fine. However, when I bundle the program with --onefile, I get this error and traceback when running:
Traceback (most recent call last):
File "main.py", line 266, in <module>
File "main.py", line 88, in main
File "main.py", line 108, in grabData
File "sql.py", line 12, in SQLconnect
File "mysql\connector\pooling.py", line 286, in connect
File "mysql\connector\connection_cext.py", line 101, in __init__
File "mysql\connector\abstracts.py", line 1095, in connect
File "mysql\connector\connection_cext.py", line 199, in _open_connection
TypeError: argument 6 must be str, not None
For reference, here is the relevant line in the _open_connection function call in connection_cext.py:
self._cmysql = _mysql_connector.MySQL(
buffered=self._buffered,
raw=self._raw,
charset_name=charset_name,
connection_timeout=(self._connection_timeout or 0),
use_unicode=self._use_unicode,
auth_plugin=self._auth_plugin,
plugin_dir=self._plugin_dir,
)
The __init__ of this file has this code snippet:
self._plugin_dir = os.path.join(
os.path.dirname(os.path.abspath(_mysql_connector.__file__)),
"mysql",
"vendor",
"plugin",
)
I believe this plugin directory is the reason my code is failing, but I do not know how to bypass this or set it so that it references the right file at runtime. I know pyinstaller creates a temp file at runtime, but I don't know how to get the module to use it as the plugin directory.
Any help would be greatly appreciated! I really really wanna keep it in --onefile mode for simplicity for the user, so any solutions that maintain that would be ideal. Thanks!
I'm calling the Paramiko sftp_client.put(locapath,remotepath) method
This is throwing the [Errno 2] File not found error below.
01/07/2020 01:12:03 PM - ERROR - [Errno 2] File not found
Traceback (most recent call last):
File "file_transfer\TransferFiles.py", line 123, in main
File "paramiko\sftp_client.py", line 727, in put
File "paramiko\sftp_client.py", line 689, in putfo
File "paramiko\sftp_client.py", line 460, in stat
File "paramiko\sftp_client.py", line 780, in _request
File "paramiko\sftp_client.py", line 832, in _read_response
File "paramiko\sftp_client.py", line 861, in _convert_status
Having tried many of the other recommend fixes I found that the error is due to the server having an automatic trigger to move the file immediately to another location upon the file being uploaded.
I've not seen another post relating to this issue and wanted to know if anyone else has fixed this as the SFTP server is owned by a third party and not wanting to change trigger attributes.
The file actually uploads correctly, so I could catch the Exception and ignore the error. But I'd prefer to handle it, if possible.
Paramiko by default verifies a size of the uploaded file after the upload.
If the file is moved away immediately after upload, the check fails.
To avoid the check, set confirm parameter of SFTPClient.put to False.
sftp_client.put(localpath, remotepath, confirm=False)
I believe the check is redundant anyway, see
How to perform checksums during a SFTP file transfer for data integrity?
For a similar question about pysftp (what is a wrapper around Paramiko), see:
Python pysftp.put raises "No such file" exception although file is uploaded
Also had this issue of the file automatically getting moved before paramiko could do an os.stat on the uploaded file and compare the local and uploaded file sizes.
#Martin_Prikryl solution works works fine for removing the error by passing in confirm=False when using sftp.put or sftp.putfo
If you want this check to still run like you mention in the post to see if the file has been uploaded fully you can run something along these lines. For this to work you will need to know the moved file location and have the ability to read the file.
import os
sftp.putfo(source_file_object, destination_file, confirm=False)
upload_size = sftp.stat(moved_path).st_size
local_size = os.stat(source_file_object).st_size
if upload_size != local_size:
raise IOError(
"size mismatch in put! {} != {}".format(upload_size, local_size)
)
Both checks use os.stat
I'm trying to use dask from Pycharm using a remote (SSH) interpreter.
Here's some code:
from dask.distributed import Client
client = Client(processes=True)
On Python 2 this seems to work fine, but on Python 3 this fails with:
Traceback (most recent call last):
File "/usr/lib/python3.8/multiprocessing/forkserver.py", line 278, in main
code = _serve_one(child_r, fds,
File "/usr/lib/python3.8/multiprocessing/forkserver.py", line 317, in _serve_one
code = spawn._main(child_r, parent_sentinel)
File "/usr/lib/python3.8/multiprocessing/spawn.py", line 125, in _main
prepare(preparation_data)
File "/usr/lib/python3.8/multiprocessing/spawn.py", line 236, in prepare
_fixup_main_from_path(data['init_main_from_path'])
File "/usr/lib/python3.8/multiprocessing/spawn.py", line 287, in _fixup_main_from_path
main_content = runpy.run_path(main_path,
File "/usr/lib/python3.8/runpy.py", line 261, in run_path
code, fname = _get_code_from_file(run_name, path_name)
File "/usr/lib/python3.8/runpy.py", line 231, in _get_code_from_file
with open(fname, "rb") as f:
FileNotFoundError: [Errno 2] No such file or directory: '/home/ubuntu/<input>'
distributed.nanny - WARNING - Restarting worker
/home/ubuntu exists and is writable- I'm not sure what /home/ubuntu/input is though!
Does anyone have an idea as to what is going wrong here?
EDIT
so after a bit of tracing back I can see that in multiprocess/spawn.py on line 226, there is a prepare function which takes a map of properties describing the processed to be spawned. For some reason the 'init_main_from_path' in that map is being set to /home/ubuntu/<input> which is a directory that doesn't exist anywhere (I'm not even usre this is a valid directory name!). It looks like the PyCharm console is setting this to help itself with the remote execution, but it's messing up the ability of multiprocess to correctly spawn a process. If I hack multiprocess/spawn.py to remove the rogue 'init_main_from_path' key then I can start the client.
I am currently trying to open a large file on my 64 bit Mac (using 64 bit Miniconda, as this is the only version for mac). I use a framework 'sumatra' which is a library to track scientific computing work and possibly reproduce it. I get the following error. I was able to debug a little, and found out that it is mainly due to X_train.npy being too big (3.6GB when not unpacked).
Traceback (most recent call last):
File "/Users/davidal/miniconda3/envs/ml_project/bin/smt", line 31, in <module>
main(sys.argv[2:])
File "/Users/davidal/miniconda3/envs/ml_project/lib/python3.5/site-packages/sumatra/commands.py", line 372, in run
project.allow_command_line_parameters)
File "/Users/davidal/miniconda3/envs/ml_project/lib/python3.5/site-packages/sumatra/commands.py", line 76, in parse_arguments
parameters = build_parameters(arg)
File "/Users/davidal/miniconda3/envs/ml_project/lib/python3.5/site-packages/sumatra/parameters.py", line 586, in build_parameters
parameters = parameter_set_class(filename)
File "/Users/davidal/miniconda3/envs/ml_project/lib/python3.5/site-packages/parameters/__init__.py", line 387, in __init__
pstr = f.read()
OSError: [Errno 22] Invalid argument
Any experience resolving such issues? Where should I look further? Any ideas?
I was using the ac2git tool to concert my accurev depot to git repository.
I am getting the following error when running the command python ac2git.py after following the necessary steps, as instructed here.
2016-08-29 09:54:14,058 - ac2git - ERROR - The script has encountered an exception, aborting!
Traceback (most recent call last):
File "ac2git.py", line 3596, in AccuRev2GitMain
rv = state.Start(isRestart=args.restart, isSoftRestart=args.softRestart)
File "ac2git.py", line 2974, in Start
self.RetrieveStreams()
File "ac2git.py", line 1556, in RetrieveStreams
tr, commitHash = self.RetrieveStream(depot=depot, stream=streamInfo,dataRef=dataRef, stateRef=stateRef, hwmRef=hwmRef, startTransaction=self.config.accurev.startTransaction, endTransaction=endTr.id)
File "ac2git.py", line 1511, in RetrieveStream
dataTr, dataHash = self.RetrieveStreamData(stream=stream, dataRef=dataRef,stateRef=stateRef)
File "ac2git.py", line 1394, in RetrieveStreamData
commitHash = self.Commit(transaction=tr, allowEmptyCommit=True,messageOverride="transaction {trId}".format(trId=tr.id), parents=[], ref=dataRef)
File "ac2git.py", line 670, in Commit
self.PreserveEmptyDirs()
File "ac2git.py", line 440, in PreserveEmptyDirs
if git.GetGitDirPrefix(path) is None and len(os.listdir(path)) == 0:
FileNotFoundError: [WinError 3] The system cannot find the path specified:'C:///Users/*****/*****/app/node_modules/bower/node_modules/update-notifier/node_modules/latest-version/node_modules/package-json/node_modules/registry-url/node_modules/npmconf/node_modules/config-chain/node_modules/proto-list'
The error is quite vague and I can't seem to find any documentation on this tool that can help with the error. Has anyone faced this issue before?
I am not familiar with the tool you are using but it seems the last line in the output excerpt you provided gives the best information:
FileNotFoundError: [WinError 3] The system cannot find the path specified:'C:///Users/*****/*****/app/node_modules/bower/node_modules/update-notifier/node_modules/latest-version/node_modules/package-json/node_modules/registry-url/node_modules/npmconf/node_modules/config-chain/node_modules/proto-list'
That path looks to be malformed with extra slashes and directory names that are not valid within the file system. Also, the file path is at 227 characters in the output and if the directory names between "Users" and "app" are long enough, you could be hitting the 256 character path name limit in Windows.