ioerror

问题 I have used pyBarcode library to generate Barcode in my software and its works perfectly fine while I load it from command line but once I freeze the entire software using py2exe I am getting IO error while generating the barcode. File "panels.pyc", line 383, in generate File "barcodeGenerator.pyc", line 9, in generate File "barcode\base.pyc", line 68, in save File "barcode\codex.pyc", line 251, in render File "barcode\base.pyc", line 103, in render File "barcode\writer.pyc", line 188, in

问题 I am trying to print to write to a file what type of shipping and item has from bs4 import BeautifulSoup from selenium import webdriver stock_file = r"C:\Users\Tut10\Desktop\PSTool-Python\Final\test.txt" def Home_Depot_Shipping(url): driver = webdriver.Chrome(r"C:\Users\Tut10\Desktop\PSTool-Python\chromedriver.exe") driver.get(url) # open a file to write to file_to_write = open(stock_file, "a") # send that file to me via email or text free_delivery = driver.find_elements_by_xpath(r'//*[@id=

问题 I am trying to print to write to a file what type of shipping and item has from bs4 import BeautifulSoup from selenium import webdriver stock_file = r"C:\Users\Tut10\Desktop\PSTool-Python\Final\test.txt" def Home_Depot_Shipping(url): driver = webdriver.Chrome(r"C:\Users\Tut10\Desktop\PSTool-Python\chromedriver.exe") driver.get(url) # open a file to write to file_to_write = open(stock_file, "a") # send that file to me via email or text free_delivery = driver.find_elements_by_xpath(r'//*[@id=

问题 I'm old at Perl and new to Python. I know in Perl that fd.close() isn't irrelevant. Writing to a full file system, close() will report the error. Also for socket errors, they appear in close(). So how to do with in Python? Some examples show putting the open() and close() in the same try block which would catch IOError on either. But other examples show close() in the finally block to close the file upon exception. However, what if the exception first occurs in close()? Does this cover both

问题 I'm programming my A13-OLinuXino-MICRO using the provided pyA13 0.2.2 SPI driver to send data to an LCD. Ideally I would like to send a list containing 320*240*2 (320*240 pixel 16 bits per color) bytes to be written in one continuous write command to be speed efficient. The drivers in spi.c and spi_lib.c had an 8bit tx_len which limited me to 256 bytes so I modified them to 32bit which worked but now I receive an error when I try to pass a list that is more than 4096 values long in my spi

问题 I'm programming my A13-OLinuXino-MICRO using the provided pyA13 0.2.2 SPI driver to send data to an LCD. Ideally I would like to send a list containing 320*240*2 (320*240 pixel 16 bits per color) bytes to be written in one continuous write command to be speed efficient. The drivers in spi.c and spi_lib.c had an 8bit tx_len which limited me to 256 bytes so I modified them to 32bit which worked but now I receive an error when I try to pass a list that is more than 4096 values long in my spi

来源： https://stackoverflow.com/questions/16720682/pil-cannot-write-mode-f-to-jpeg

问题 I try this file writer/reader code segment for test: File file = new File(Environment.getExternalStorageDirectory(), "LM/lm_lisdat_01.txt"); FileOutputStream outputStream = new FileOutputStream(file); outputStream.write(("test").getBytes()); outputStream.close(); File file = new File(getExternalFilesDir(null), "LM/lm_lisdat_01.txt"); BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(new FileInputStream(file))); In the 4. row i got this error message below but the "lm

问题 I'm trying to run the following script which simply reads and image and saves it again: from PIL import Image import os rootdir = '/home/user/Desktop/sample' for subdir, dirs, files in os.walk(rootdir): for file in files: im = Image.open(file) im.save(file) I however get the following error: Traceback (most recent call last): File "test.py", line 10, in <module> im = Image.open(file) File "/usr/lib/python2.7/dist-packages/PIL/Image.py", line 2258, in open fp = builtins.open(filename, "rb")

问题 I'm trying to run the following script which simply reads and image and saves it again: from PIL import Image import os rootdir = '/home/user/Desktop/sample' for subdir, dirs, files in os.walk(rootdir): for file in files: im = Image.open(file) im.save(file) I however get the following error: Traceback (most recent call last): File "test.py", line 10, in <module> im = Image.open(file) File "/usr/lib/python2.7/dist-packages/PIL/Image.py", line 2258, in open fp = builtins.open(filename, "rb")