Bash check if file was modified within date range Question: I have a script that checks to see if a cert, (.cer file), is within 14 days of expiring, and if it is, it will archive the old cert request, generate a new one, and send it to the middleware team. The thought occurs though, …
Twisted application ignoring a certain UNIX signal – is it possible? Question: Let’s say we have the following situation: kill <pid> sends SIGTERM kill -<SIGNAL> <pid> sends <SIGNAL> Sometimes, during development, I need to kill my application and restart it, at the moment – using the first type of command. But, if I have a …
Does the Python regular expression module use BRE or ERE? Question: It appears that POSIX splits regular expression implementations into two kinds: Basic Regular Expressions (BRE) and Extended Regular Expressions (ERE). Python re module reference does not seem to specify. Asked By: tarabyte || Source Answers: Except for some similarity in the syntax, re module …
What can lead to "IOError: [Errno 9] Bad file descriptor" during os.system()? Question: I am using a scientific software including a Python script that is calling os.system() which is used to run another scientific program. While the subprocess is running, Python at some point prints the following: close failed in file object destructor: IOError: [Errno …
Is there anyway to modify stat information like mtime or ctime manually in Python or any language at all? Question: I am trying the following code: os.stat(path_name)[stat.ST_CTIME] = ctime However, this gives the following error: exceptions.TypeError: ‘posix.stat_result’ object does not support item assignment Is there anyway to modify ctime? Thanks! Asked By: Dagvadorj || Source …
Expanding Environment variable in string using python Question: I have a string containing an environment variable, e.g. my_path = ‘$HOME/dir/dir2’ I want parse the string, looking up the variable and replacing it in the string: print "HOME =",os.environ[‘HOME’] my_expanded_path = parse_string(my_path) print "PATH =", my_expanded_path So I should see the output: HOME = /home/user1 PATH …
Does Python zipfile always use posixpath filenames regardless of operating system? Question: It probably won’t matter for my current utility, but just for good coding practice, I’d like to know if files in a ZIP file, using the zipfile module, can be accessed using a POSIX-style pathname such as subdir/file.ext regardless of on which operating …
