Listening to a target directory and executing a python file dynamically

[Heshan Suri]

Hi,
Assume that I have a target directory, which I am using as a location to store my python scripts.What I need to do is to listen to that directory and when a python script is placed in that directory, I need to execute it at that time.Can anyone give me an idea on how to do this using python?

[jlm699]

Let's see... a python file monitoring daemon. First off I would suggest googling "python daemon" and following one of many tutorials that come up to create a daemon (a little bit beyond the scope of a single post).

Then all you would need to do is have the daemon monitor the files in a certain directory:
[code=python]
>>> # during daemon init:
>>> import os, time
>>> myFilePath = os.path.join('C :\\', 'Documents and Settings', 'Administrator' , 'Desktop', 'pythtests')
>>> myFilePath
'C:\\Documents and Settings\\Admin istrator\\Deskt op\\pythtests'
>>> if os.path.isdir(m yFilePath):
... origFileList = os.listdir(myFi lePath)
...
>>> # Now during daemon's running process...
>>> time.sleep(10) # Just wait a little while, or you can continuously monitor
>>> fileList = os.listdir(myFi lePath)
>>> if fileList != origFileList:
... for fileName in fileList:
... if fileName not in origFileList and fileName.endwit h('.py'):
... os.popen('%s' % os.path.join(my FilePath, fileName))
...
>>> [/code]
That's just a quick example to give you an idea of what to do... there are certainly better ways to achieve this, but at least to get you started...