I made a simple project in python that pings a server every few seconds and I want to store the ping data in a .txt file. (It might also be cool to put it in a GUI but I need it in a txt file for now). Also, it just shows the ping in the terminal so I have no idea how I would make it go into a txt because I'm new at coding.
(here's my code btw)
import os
import time
while 1:
os.system('ping 1.1.1.1 -n 1')
time.sleep(5)
I didn't try much because I couldn't figure out anything I looked up stuff and nothing was what I wanted.
(also I'm a noob at coding anyways)
You'll have to run your code with Popen instead of os.system (which is a bad idea in most cases, anyway, for security reasons).
With Popen (python.org -> documentation is your friend!) you can capture the output of the programs you run. You can then write that to a file object. (That's a built-in type in python. Again, official documentation on this is good and comes with examples!)
I honestly don't see a reason to write the results of ping to a file. Wouldn't you just care about whether that ping worked and was reasonably fast? Maybe extract that information instead and just log it instead!
Related
I am writing a Python program to analyze log files. So basically I have about 30000 medium-size log files and my Python script is designed to perform some simple (line-by-line) analysis of each log file. Roughly it takes less than 5 seconds to process one file.
So once I set up the processing, I just left it there and after about 14 hours when I came back, my Python script simply paused right after analyzing one log file; seems that it hasn't written into the file system for the analyzing output of this file, and that's it. No more proceeding.
I checked the memory usage, it seems fine (less than 1G), I also tried to write to the file system (touch test), it also works as normal. So my question is that, how should I proceed to debug the issue? Could anyone share some thoughts on that? I hope this is not too general. Thanks.
You may use Trace or track Python statement execution and/or The Python Debugger module.
Try this tool https://github.com/khamidou/lptrace with command:
sudo python lptrace -p <process_id>
It will print every python function your program invokes and may help you understand where your program stucks or in an infinity loop.
If it does not output anything, that's proberbly your program get stucks, so try
pstack <process_id>
to check the stack trace and find out where stucks. The output of pstack is c frames, but I believe somehow you can find something useful to solve your problem.
I use Python 2.7/PySerial scripts to run tests on devices with an embedded Linux. Due to a recent software change, the Linux box generates a number of log files in .csv format. I need to fetch them. I can't enable any server features in the Linux; I only have a serial connection.
I can of course read the file content out and capture it as text, but this is clumsy and unreliable - I would rather copy the files. Two days of search, and I'm still clueless (Generic problem with me!).
Any hints, please? Please be gentle - this is my first question... :)
Once you get a serial terminal you can use sz (part of lrzsz) to send the files via ZModem. Simply use a serial comm program on the other side (Hyperterminal?) that understands ZModem and the files can be transferred over.
I thank you very much for the proposed solutions. Unfortunately, neither work (I can not enable anything extra on the Linux box), and they are both outside the desired Python environment.
I think it's a kludge, but i'll have to ask for a
cat logfile
as a text string, and attempt to catch the prompt at the end.
Thank you for your time and effort.
I would like to know where does the function pythoncom.PumpMessage() stores the message when it comes into play. I was going through a site and just saw a Python Script for Key logger, I copied the code and used it on my computer but I don't feel safe, after deleting that code I think it's still running in the background and copying my keypresses. Is it so, please help.
If the python script was sending messages to anyone, you'd probably be able to tell by looking at the code. Somewhere there would be a block of code sending some file to a server.
As for PumpMessages(), it
Pumps all messages for the current thread until a WM_QUIT message.
According to this documentation. You can find other answered questions on this with a Google search as well. Pythoncom isn't sending any information to an external source in and of itself, however your script might be. You'd have to check your code for a block doing that.
As for it running after you delete the script, highly unlikely. If you didn't manually or programmatically (in the script) attach the Python script to some daemon, it isn't manifesting itself anywhere. You may be over-estimating the power of a basic Python keylogger. I wouldn't worry.
I've tried keyloggers before with pythoncom, and I've never had a problem. You can also look in the pythoncom library to find the PumpMessages() function and see if that is sending anything.
At the begining i would like to state that i did look for an answer before posting my question, but if i missed anything I'm really sorry.
Ok to the point.
I'm trying to create a tool that will monitor behaviour of my 2 external devices comunicating over BT(communication over BT i have pretty much solved). but what i'm strugling with is monitoring them.
So Manually i open cmdline 2 times and from there i use putty to connect to devices and do stuff.
Now I want(and pretty much need) to do the manual part in python. So i tried using subprocess.Popen to connect to cmdline(and from there to putty) but the problem is that this only works as request/response. what i need is to open (and keep) cmdline streamlike connection and pass and receive commands/response without closing.
P.S. I'm using windows enviroment and python 2.7.
Thank You for any response.
Kind Regards.
I'm working on a script that should check on certain system events (like opening of a file, or changing of a registry key) and start further actions depending on that. But I haven't found a clean way to get the information into my script.
I'm looking for a way to get the output of Sysinternals Process Monitor into another program. This should happen without user interaction in close to real time; so saving into a CSV/XML and than using this doesn't work.
I've checked on using the backing file, but this is in the Process Monitor PML format, which i haven't found to be documented anywhere.
Does anybody know a way how I can get the output of Process Monitor into my script?
Or an other (not too messy) way to get a real time list of opened files, registry keys etc into a python program?
Thanks!
If you want to parse stdout or a file, and your ok with a 32 bit only solution, try Dr Strace or ntstrace.
YOu could also look into ospy or another ProcMon alternative. ospy is open source, so at the very least you could look at the source code for capturing events.
Here is a list of alternates to ProcMon.