Question or problem about Python programming:
I’m getting IOError: [Errno 13] Permission denied and I don’t know what is wrong wit this code.
I’m trying to read a file given an absolute path (meaning only file.asm),
and a relative path (meaning /…/file.asm), and I want the program to write the file to whatever path is given – if it is absolute, it should write it to the current dir; otherwise, to the path given.
the code:
#call to main function if __name__ == '__main__': assem(sys.argv[1]) import sys def assem(myFile): from myParser import Parser import code from symbolTable import SymbolTable table=SymbolTable() # max size of each word WORD_SIZE = 16 # rom address to save to rom_addrs = 0 # variable address to save to var_addrs = 16 # new addition if (myFile[-4:] == ".asm"): newFile = myFile[:4]+".hack" output = open(newFile, 'w') <==== ERROR
the error given:
IOError: [Errno 13] Permission denied: '/Use.hack'
the way I execute the code :
python assembler.py Users/***/Desktop/University/Add.asm
What am I doing wrong here?
How to solve the problem:
Solution 1:
It looks like you're trying to replace the extension with the following code:
if (myFile[-4:] == ".asm"): newFile = myFile[:4]+".hack"
However, you appear to have the array indexes mixed up. Try the following:
if (myFile[-4:] == ".asm"): newFile = myFile[:-4]+".hack"
Note the use of -4
instead of just 4
in the second line of code. This explains why your program is trying to create /Use.hack
, which is the first four characters of your file name (/Use
), with .hack
appended to it.
Solution 2:
Just Close the opened file where you are going to write.
Solution 3:
You don't have sufficient permissions to write to the root directory. See the leading slash on the filename?
Solution 4:
This happened to me when I was using 'shutil.copyfile' instead of 'shutil.copy'. The permissions were messed up.
Solution 5:
Maybe You are trying to open folder with open
, check it once.
Solution 6:
For me nothing from above worked. So I solved my problem with this workaround. Just check that you have added SYSTEM in directory folder. I hope it will help somoene.
import os # create file @staticmethod def create_file(path): if not os.path.exists(path): os.system('echo # > {}'.format(path)) # append lines to the file split_text = text_file.split('\n') for st in split_text: os.system('echo {} >> {}'.format(st,path))
Solution 7:
I had a same problem. In my case, the user did not have write permission to the destination directory. Following command helped in my case :
chmod 777 University
Solution 8:
Check if you are implementing the code inside a could drive like box, dropbox etc. If you copy the files you are trying to implement to a local folder on your machine you should be able to get rid of the error.
Solution 9:
For me, this was a permissions issue.
Use the 'Take Ownership' application on that specific folder.
However, this sometimes seems to work only temporarily and is not a permanent solution.