Line replace two values python django -


i want line replace 2 values in same file. want search 'input="default"' , replace value 'this' , pattern="default" 'now'. have created tmp form code reads values , writes file.am new django , python.at moment writing 1 value.

views.py

with open('/home/usr/dev/django/rulebase/test_pattern_tmp.rb', 'r') pattern_reading:    lines = [line.replace('pattern = "default"','now') line in pattern_reading.readlines()]    lines = [line.replace('input = "default"','this') line in pattern_reading.readlines()] open('/home/usr/dev/django/rulebase/test_pattern.rb', 'w') pattern_reading:    pattern_reading.writelines(lines)

the solution is:

with open('/home/usr/dev/django/rulebase/test_pattern_tmp.rb', 'r') pattern_reading:     open('/home/usr/dev/django/rulebase/test_pattern.rb', 'w') pattern_writing:         line in pattern_reading:             out=line.replace('pattern="default"','now').replace('input="default"','this')             pattern_writing.write(out)

hi, there 2 issues:

  1. you reading whole file memory (which not error)
  2. a file object may considered iterator. have reached end of file in first iteration secon iteration nothing

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