I want to search a Perforce depot for files.
I do this from a python script and use the p4python library command:
list = p4.run("files", "//mypath/myfolder/*")
This works fine as long as myfolder contains some files. I get a python list as a return value. But when there is no file in myfolder the program stops running and no error message is displayed. My goal is to get an empty python list, so that I can see that this folder doesn't contain any files.
Does anybody has some ideas? I could not find information in the p4 files documentation and on StackOverflow.
I'm going to guess you've got an exception handler around that command execution that's eating the exception and exiting. I wrote a very simple test script and got this:
C:\Perforce\test>C:\users\samwise\AppData\local\programs\python\Python36-32\python files.py
Traceback (most recent call last):
File "files.py", line 6, in <module>
print(p4.run("files", "//depot/no such path/*"))
File "C:\users\samwise\AppData\local\programs\python\Python36-32\lib\site-packages\P4.py", line 611, in run
raise e
File "C:\users\samwise\AppData\local\programs\python\Python36-32\lib\site-packages\P4.py", line 605, in run
result = P4API.P4Adapter.run(self, *flatArgs)
P4.P4Exception: [P4#run] Errors during command execution( "p4 files //depot/no such path/*" )
[Error]: "//depot/no such path/* - must refer to client 'Samwise-dvcs-1509687817'."
Try something like this ?
import os
if len(os.listdir('//mypath/myfolder/') ) == 0: # Do not execute p4.run if directory is empty
list = []
else:
list = p4.run("files", "//mypath/myfolder/*")
Related
When I run the code below in jupyter, it is excellent, I get the results I want.
real = fr.load_image_file("image.jpg")
unknown = fr.load_image_file("image2.jpg")
# encodings
real_encoding = fr.face_encodings(real)[0]
unk = fr.face_encodings(unknown)[0]
result = fr.compare_faces([real_encoding], unk)
print(result)
but when I copy and paste the same code to an editor(atom the one I am using), and then run it using command prompt, I get an error as shown below
Traceback (most recent call last):
File "face_recognizer.py", line 13, in <module>
real_encoding = fr.face_encodings(real)[0]
IndexError: list index out of range
I activated the environment in which I was running the cmd.
Can someone advise me where I maybe going wrong?
There was no face captured in the photo.
That is why it throws an exception.
I am currently working with the Instabot API for python and I ran across the following issue:
I wrote a small program:
from instabot import Bot
bot = Bot()
bot.login(username = "[my username]", password = "[my passowrd]")
bot.follow("lego")
which worked fine after running it for the very first time. However, after running the program for a second time, this time following another account, it raised an error ("KeyError: ds_user").
This error can be fixed by deleting the config folder inside the project folder. Unfortunately, this isn't a very sustainable solution, as it makes working on the code really arduous. I therefore would like to know if there is any solution for getting the program to run multiple times without having to delete the config folder over and over again.
I am receiving the following traceback (code is running in an anaconda environment called "Instagram Automation"):
Traceback (most recent call last):
File "e:/Programme/OneDrive/Dokumente/Projekte/Instagram Automation/main.py", line 4, in <module>
bot.login(username = "[my username]", password = "[my password]")
File "E:\Programme\Anaconda\envs\Instagram Automation\lib\site-packages\instabot\bot\bot.py", line 443, in login
if self.api.login(**args) is False:
File "E:\Programme\Anaconda\envs\Instagram Automation\lib\site-packages\instabot\api\api.py", line 240, in login
self.load_uuid_and_cookie(load_cookie=use_cookie, load_uuid=use_uuid)
File "E:\Programme\Anaconda\envs\Instagram Automation\lib\site-packages\instabot\api\api.py", line 199, in load_uuid_and_cookie
return load_uuid_and_cookie(self, load_uuid=load_uuid, load_cookie=load_cookie)
File "E:\Programme\Anaconda\envs\Instagram Automation\lib\site-packages\instabot\api\api_login.py", line 352, in load_uuid_and_cookie
cookie_username = self.cookie_dict["ds_user"]
KeyError: 'ds_user'
As far as I can see, the only way on your side to fight the symptoms is to always delete the JSON file in the config folder, e.g:
import os
if os.path.isfile("path/to/config/file.json"):
os.remove("path/to/config/file.json")
import instabot
# rest of your code goes here
The developers of instabot should fix the source of the problem, for example by using self.cookie_dict.get("ds_user", "some default value") instead of self.cookie_dict["ds_user"]
I wrote the following code, which results in an error and I don't know how to fix it to work.
The code is:
# Name: ClipGDBtoNewGDB.py
# Description: Take an input GDB, create a list, iterate through each
feature class, clipping it and writing it to a new GDB.
# Author: tuilbox
# Import system modules
import arcpy, os
from arcpy import env
# Set workspace
env.workspace = arcpy.GetParameterAsText(0)
arcpy.env.overwriteOutput=True
# Set local variables
fclist = arcpy.ListFeatureClasses()
clip_features = arcpy.GetParameterAsText(1)
output_directory=arcpy.GetParameterAsText(2)
xy_tolerance = ""
outgdb=os.path.join(output_directory, arcpy.GetParameterAsText(3))
if not arcpy.Exists(outgdb):
arcpy.CreateFileGDB_management(output_directory,
arcpy.GetParameterAsText(3))
# Execute Clip within for loop
for fc in fclist:
arcpy.Clip_analysis(fc, clip_features, os.path.join(outgdb, fc))
The error is: Traceback (most recent call last):
File "F:/GIS_Joseph/Lab10_Joseph/ClipGDBtoNewGDB.py", line 17, in <module>
arcpy.CreateFileGDB_management(output_directory, arcpy.GetParameterAsText(3))
File "C:\Program Files (x86)\ArcGIS\Desktop10.5\ArcPy\arcpy\management.py", line 18878, in CreateFileGDB
raise e
ExecuteError: Failed to execute. Parameters are not valid.
ERROR 000735: File GDB Location: Value is required
ERROR 000735: File GDB Name: Value is required
Failed to execute (CreateFileGDB).
Any help would be appreciated. Thank you.
With this type of question it would be helpful to let us know what parameters you are passing into your script. Have you passed a valid parameter in position 3? Use arcpy.AddMessage to double check what value you are attempting to pass to arcpy.CreateFileGDB_management.
I'm teaching myself how to Python3. I wanted to train my acquired skills and write a command-line backup program. I'm trying to save the default backup and save locations with the Shelve module but it seems that it keeps forgetting the variables I save whenever I close or restart the program.
Here is the main function that works with the shelves:
def WorkShelf(key, mode='get', variable=None):
"""Either stores a variable to the shelf or gets one from it.
Possible modes are 'store' and 'get'"""
config = shelve.open('Config')
if mode.strip() == 'get':
print(config[key])
return config[key]
elif mode.strip() == 'store':
config[key] = variable
print(key,'holds',variable)
else:
print("mode has not been reconginzed. Possible modes:\n\t- 'get'\n\t-'store'")
config.close()
So, whenever I call this function to store variables and call the function just after that, it works perfectly. I tried to access the shelf manually and everything is there.
This is the code used to store the variables:
WorkShelf('BackUpPath','store', bupath)
WorkShelf('Path2BU', 'store', path)
The problem comes when I try to get my variables from the shelf after restarting the script. This code:
config = shelve.open('Config')
path = config['Path2BU']
bupath = config['BackUpPath']
Gives me this error:
Traceback (most recent call last):
File "C:\Python35-32\lib\shelve.py", line 111, in __getitem__
value = self.cache[key]
KeyError: 'Path2BU'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
config['Path2BU']
File "C:\Python35-32\lib\shelve.py", line 113, in __getitem__
f = BytesIO(self.dict[key.encode(self.keyencoding)])
File "C:\Python35-32\lib\dbm\dumb.py", line 141, in __getitem__
pos, siz = self._index[key] # may raise KeyError
KeyError: b'Path2BU
Basically, this is an error I could reproduce by calling ShelveObject['ThisKeyDoesNotExist'].
I am really lost right now. When I try to manually create a shelf, close it and access it again it seems to work (even though I got an error doing that before) now. I've read every post concerning this, I thought about shelf corruption (but it's not likely it happens every time), and I've read my script A to Z around 20 times now.
Thanks for any help (and I hope I asked my question the right way this time)!
EDIT
Okay so this is making me crazy. Isolating WorkShelf() does work perfectly, like so:
import shelve
def WorkShelf(key, mode='get', variable=None):
"""Either stores a variable to the shelf or gets one from it.
Possible modes are 'store' and 'get'"""
config = shelve.open('Config')
if mode.strip() == 'get':
print(config[key])
return config[key]
elif mode.strip() == 'store':
config[key] = variable
print(key,'holds',variable)
else:
print("mode has not been reconginzed. Possible modes:\n\t- 'get'\n\t-'store'")
config.close()
if False:
print('Enter path n1: ')
path1 = input("> ")
WorkShelf('Path1', 'store', path1)
print ('Enter path n2: ')
path2 = input("> ")
WorkShelf('Path2', 'store', path2)
else:
path1, path2 = WorkShelf('Path1'), WorkShelf('Path2')
print (path1, path2)
No problem, perfect.
But when I use the same function in my script, I get this output. It basically tells me it does write the variables to the shelve files ('This key holds this variable' message). I can even call them with the same code I use when restarting. But when calling them after a program reset it's all like 'What are you talking about m8? I never saved these'.
Welcome to this backup manager.
We will walk you around creating your backup and backup preferences
What directory would you like to backup?
Enter path here: W:\Users\Damien\Documents\Code\Code Pyth
Would you like to se all folders and files at that path? (enter YES|NO)
> n
Okay, let's proceed.
Where would you like to create your backup?
Enter path here: N:\
Something already exists there:
19 folders and 254 documents
Would you like to change your location?
> n
Would you like to save this destination (N:\) as your default backup location ? That way you don't have to type it again.
> y
BackUpPath holds N:\
If you're going to be backing the same data up we can save the files location W:\Users\Damien\Documents\Code\Code Pyth so you don't have to type all the paths again.
Would you like me to remember the backup file's location?
> y
Path2BU holds W:\Users\Damien\Documents\Code\Code Pyth
>>>
======== RESTART: W:\Users\Damien\Documents\Code\Code Pyth\Backup.py ========
Welcome to this backup manager.
Traceback (most recent call last):
File "C:\Python35-32\lib\shelve.py", line 111, in __getitem__
value = self.cache[key]
KeyError: 'Path2BU'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "W:\Users\Damien\Documents\Code\Code Pyth\Backup.py", line 198, in <module>
path, bupath = WorkShelf('Path2BU'), WorkShelf('BackUpPath')
File "W:\Users\Damien\Documents\Code\Code Pyth\Backup.py", line 165, in WorkShelf
print(config[key])
File "C:\Python35-32\lib\shelve.py", line 113, in __getitem__
f = BytesIO(self.dict[key.encode(self.keyencoding)])
File "C:\Python35-32\lib\dbm\dumb.py", line 141, in __getitem__
pos, siz = self._index[key] # may raise KeyError
KeyError: b'Path2BU'
Please help, I'm going crazy and might develop a class to store and get variables from text files.
Okay so I just discovered what went wrong.
I had a os.chdir() in my setup code. Whenever Setup was done and I wanted to open my config files it would look in the current directory but the shelves were in the directory os.chdir() pointed to in the setup.
For some reason I ended up with empty shelves in the directory the actual ones were supposed to be. That cost me a day of debugging.
That's all for today folks!
I am using http://code.google.com/p/pynessus/ so that I can interact with nessus using python but I run into problems trying to connect to the server. I am not sure what I need to set pynessus too?
I try connecting to the server using the following syntax as directed by the documentation on the site but I receive the following error:
n = pynessus.NessusServer(localhost, 8834, root, password123)
Error:
root#bt:~/Desktop# ./nessus.py
Traceback (most recent call last):
File "./nessus.py", line 634, in
n = pynessus.NessusServer(localhost, 8834, root, password123)
NameError: name 'pynessus' is not defined
The problem is that you didn't import the pynessus module. To solve this problem, simply place the downloaded pynessus.py in the same folder as your Python script and add the line
import pynessus
at the top of that script. You can reference the pynessus library in your script only after that line.