Problem using os.system() with sed command

Question

I\'m writing a small method to replace some text in a file. The only argument I need is the new text, as it is always the same file and text to be replaced.

I\'m hav

Answer 1

What is wrong is that there is some difference. Yeah, I know that's not helpful, but you need to figure out the difference.

Try running this:

import os
def updateExportConfigId(id):
    stringId = "%s" % id
    cmd1 = "sed '1,$s/MANAGER_ID=[0-9]*/MANAGER_ID=" + stringId + "/g' path/file.old > path/file.new"
    stringId = "GRRRRRRRRR"
    cmd2 = "sed '1,$s/MANAGER_ID=[0-9]*/MANAGER_ID=" + stringId + "/g' path/file.old > path/file.new"

    print "cmd1:" , cmd1
    print "cmd2:" , cmd2
    print cmd1 == cmd2

updateExportConfigId("GRRRRRRRRR")

The code should print:

sed '1,$s/MANAGER_ID=[0-9]*/MANAGER_ID=GRRRRRRRRR/g' path/file.old > path/file.new
sed '1,$s/MANAGER_ID=[0-9]*/MANAGER_ID=GRRRRRRRRR/g' path/file.old > path/file.new
True

Thereby showing that they are exactly the same. If the last line is "False" then they are not the same, and you should be able to see the difference.