- 1 year ago
trying to run outside exe file from python freezes
If you are experiencing freezing or unresponsiveness when attempting to run an external executable file from Python, there could be several reasons for this behavior. Here are a few potential causes and solutions to consider:
Check the External Executable: Ensure that the external executable is functioning correctly when run outside of Python. Test it independently to verify that it runs as expected without any freezing or issues.
Verify File Path and Permissions: Double-check that the file path to the external executable is correct and accessible from your Python script. Ensure that you have the necessary permissions to execute the file.
Use Subprocess Module: Instead of using methods like
os.system
oros.popen
to run the external executable, consider using thesubprocess
module in Python. Thesubprocess
module provides more flexibility and control over running external commands.Here's an example of using
subprocess
to run an external executable:pythonimport subprocess
# Replace "your_executable.exe" with the actual path to the executable
result = subprocess.run(["your_executable.exe", "arg1", "arg2"], capture_output=True)
# Access the output and return codes if needed
output = result.stdout.decode("utf-8")
returncode = result.returncode
The
subprocess.run
function allows you to specify the command and any arguments as a list. Thecapture_output=True
parameter captures the output of the executed command.Handle Long-Running Processes: If the external executable is expected to take a long time to complete, consider using asynchronous execution techniques with the
subprocess
module. This can prevent the Python script from freezing while waiting for the external process to finish.Investigate Potential Issues: If the freezing persists, investigate the behavior of the external executable further. It may be interacting with system resources or requiring input that is causing the freeze. Review the documentation or support resources for the executable to ensure proper usage.
Use System Monitoring Tools: Employ system monitoring tools to check the system resource usage during the execution of the external executable. Monitor CPU, memory, and disk usage to identify any bottlenecks or resource constraints that may be causing the freezing.
By considering these potential causes and implementing the suggested solutions, you should be able to troubleshoot and resolve the freezing issue when running an external executable from Python.