Selenium don't work after exporting to EXE in windowed mode in pyinstaller

Question

I am making an PyQt4 application where I need to use selenium. Everything works fine while development but when I exported to single file EXE, by pyinstalle

Answer 1

I found out that pyinstaller doesn't create a copy of chromedriver.exe in the dist folder. Copying chromedriver.exe file to there solved the problem for me.

Answer 2

After a lot of research, I found a solution for the above problem.

What you just need to do is edit the file:
C:\Python34\Lib\site-packages\selenium\webdriver\common\service.py

Change the following line:

self.process = subprocess.Popen(cmd, env=self.env,
                                        close_fds=platform.system() != 'Windows',
                                        stdout=self.log_file, stderr=self.log_file)

to:

self.process = subprocess.Popen(cmd, stdin=PIPE, stdout=PIPE, stderr=PIPE, shell=False, creationflags=0x08000000)

This will work even while development and also after deploying to EXE.

Might be a selenium bug.