ioerror

问题 I am having trouble porting a working, Windows Python application to Linux. I am having some problems, because I did not write the code and am just learning Python. I am having trouble fixing the issues that it keeps throwing up. So here is a kind of error that right now I am stuck with Traceback (most recent call last): File "alpha_beta", line 237, in <module> main() File "alpha_beta", line 185, in main ABCCmd() File "alpha_beta.py", line 74, in ABCCmd File "C:\softs\Python\Lib\shutil.py",

问题 I've written a basic program to check through a directory tree containing many jpeg files (500000+) verify that they are not corrupted (approximately 3-5% of the files seem to be corrupt in some way) and then take a sha1sum of the files (even the corrupt ones) and save the info into a database. The jpeg files in question are located on a windows system and mounted on the linux box via cifs. They are mostly around 4 megabytes in size, although some maybe slightly larger or smaller. When I run

问题 This is my spec file # -*- mode: python -*- a = Analysis(['final_code.py'], pathex=['C:\\Python27\\PyInstaller-2.1\\final_code'], hiddenimports=[], hookspath=None, runtime_hooks=None) pyz = PYZ(a.pure) exe = EXE(pyz, Tree('C:\\Python27\\data_req\\'), a.scripts, exclude_binaries=True, name='final_code.exe', debug=False, strip=None, upx=True, console=False ) coll = COLLECT(exe, a.binaries, a.zipfiles, a.datas, strip=None, upx=True, name='final_code') I have modified it to include the text files

问题 I have a small issue with a python program that I wrote to extract some information from a special text file. The loop (code below) needs to execute my function extract_zcoords() over 500 files (1 file gives one list) so that I can build a dataset. import os def extract_zcoord(filename): f = open(filename, 'r') ... # do something with f ### LOOP OVER DIRECTORY location = '/Users/spyros/Desktop/3NY8MODELSHUMAN/HomologyModels' for filename in os.listdir(location): extract_zcoord(filename) THE

问题 (I asked this previously, but have since accepted that it is not an issue with openpyxl , so changing tack) Given an xlsx created on OS X, I open it for writing on that platform using openpyxl load_workbook() . I add some data, then I save it using Workbook.save() (to the same file). All good on OS X, but when the program, and the XLSX, are transferred onto a Windows machine and executed, I get: c:\Users\Me\Desktop\ROI>python roi_cut7.py > log.txt Traceback (most recent call last): File "roi

问题 I have come across examples in this forum where a specific error around files and directories is handled by testing the errno value in OSError (or IOError these days ?). For example, some discussion here - Python's "open()" throws different errors for "file not found" - how to handle both exceptions?. But, I think, that is not the right way. After all, a FileExistsError exists specifically to avoid having to worry about errno . The following attempt didn't work as I get an error for the token

问题 I am getting IOError: [Errno 13] Permission denied: '/usr/local/lib/python2.7/dist-packages/python_dateutil-2.2-py2.7.egg/EGG-INFO/top_level.txt' when I am trying to import pandas. I don't see why. Importing pandas in the python3 console works just fine. Execution of the code is done with Python3 too start_simulation.py from Market import Market from TestingAlgorithm import TestingAlgorithm from LiteForexHandler import LiteForexHandler from Broker import Broker from Portfolio import Portfolio

问题 C has perror and errno, which print and store the last error encountered. This is convenient when doing file io as I do not have to fstat() every file that fails as an argument to fopen() to present the user with a reason why the call failed. I was wondering what is the proper way to grab errno when gracefully handling the IOError exception in python? In [1]: fp = open("/notthere") --------------------------------------------------------------------------- IOError Traceback (most recent call

问题 EDIT: At the suggestion of J. F. Sebastian, I can get the same error much more simply: Python 2.6.4 (r264:75708, Oct 26 2009, 08:23:19) [MSC v.1500 32 bit (Intel)] Type "copyright", "credits" or "license" for more information. IPython 0.10 -- An enhanced Interactive Python. ? -> Introduction and overview of IPython's features. %quickref -> Quick reference. help -> Python's own help system. object? -> Details about 'object'. ?object also works, ?? prints more. Welcome to pylab, a matplotlib

问题 When attempting to write a file, I can get this same error when any of following conditions applies: The file exists and is marked read-only. I don't have write permission for the folder and therefore cannot create a file. The file is already open in another process. Is there any way to separate out the above three causes? If not, then I would say that this is an extraordinarily poor design. 回答1: You get the same Exception as your base problem is "You can't do this" but the details are