pipe large amount of data to stdin while using subprocess.Popen

Question

I\'m kind of struggling to understand what is the python way of solving this simple problem.

My problem is quite simple. If you use the follwing code it will hang. T

Answer 1

Here's something I used to load 6G mysql dump file loads via subprocess. Stay away from shell=True. Not secure and start out of process wasting resources.

import subprocess

fhandle = None

cmd = [mysql_path,
      "-u", mysql_user, "-p" + mysql_pass],
      "-h", host, database]

fhandle = open(dump_file, 'r')
p = subprocess.Popen(cmd, stdin=fhandle, stdout=subprocess.PIPE, stderr=subprocess.PIPE)

(stdout,stderr) = p.communicate()

fhandle.close()