Python error message io.UnsupportedOperation: not readable
You are opening the file as “w”, which stands for writable. Using “w” you won’t be able to read the file. Use the following instead: Additionally, here are the other options:
You are opening the file as “w”, which stands for writable. Using “w” you won’t be able to read the file. Use the following instead: Additionally, here are the other options:
You could use the copy() function : Quoting a couple of relevant sentences from its manual page : Makes a copy of the file source to dest. If the destination file already exists, it will be overwritten.
I want to require a file to be downloaded upon the user visiting a web page with PHP. I think it has something to do with file_get_contents, but am not sure how to execute it. After downloading a file with header(location) it is not redirecting to another page. It just stops.
How do I check whether a file exists or not, without using the try statement?
You can convert char to int and viceversa easily because for the machine an int and a char are the same, 8 bits, the only difference comes when they have to be shown in screen, if the number is 65 and is saved as a char, then it will show ‘A’, if it’s saved as … Read more
Read Byte by Byte and check that each byte against ‘\n’ if it is not, then store it into bufferif it is ‘\n’ add ‘\0’ to buffer and then use atoi() You can read a single byte like this See read()
shutil has many methods you can use. One of which is: Copy the contents of the file named src to a file named dst. Both src and dst need to be the entire filename of the files, including path. The destination location must be writable; otherwise, an IOError exception will be raised. If dst already exists, it will be replaced. Special files such as character or block … Read more
I would check that the file is not empty first: Also open(target, ‘a’).close() is doing nothing in your code and you don’t need to use ;.
You can use a loop: In Python 2, you can also use If you’re keen on a single function call, at least remove the square brackets [], so that the strings to be printed get made one at a time (a genexp rather than a listcomp) — no reason to take up all the memory required … Read more