Posted in Information Technology, Software Engineering

Python Syntax Examples

 

Data Types

Dumping complex structures

import json
print json.dumps(something)

Arrays (Lists)

Print array of strings:

print "\n".join(arr)

Iterating by index

for i in range(len(arr)):
  print arr[i]

Standard Tasks

Read from Pipe

Line by line

proc = subprocess.Popen(['/bin/ls', 'something'],stdout=subprocess.PIPE)
while True:
  line = proc.stdout.readline()
  if line != '':
    do_something
  else:
    break

Entire output at once

echo subprocess.check_output(['/bin/ls', 'something])

Parse JSON

import json
data = json.loads(json_string)

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