DEV Community: perXautomatik

Answer: Fastest way to flatten / un-flatten nested JSON objects

perXautomatik — Wed, 24 Feb 2021 16:16:57 +0000

answer re: Fastest way to flatten / un-flatten nested JSON objects

Sep 30 '13

Here's my much shorter implementation:

Object.unflatten = function(data) {
    "use strict";
    if (Object(data) !== data || Array.isArray(data))
        return data;
    var regex = /\.?([^.\[\]]+)|\[(\d+)\]/g,
        resultholder = {};
    for (var p in data) {
        var cur = resultholder,
            prop = "",
            m;
        while (m = regex.exec(p)) {
            cur = cur[prop] || (cur[prop]

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Answer: How to pipe input to python line by line from linux program?

perXautomatik — Wed, 24 Feb 2021 16:13:05 +0000

answer re: How to pipe input to python line by line from linux program?

Jul 15 '13

123

Instead of using command line arguments I suggest reading from standard input (stdin). Python has a simple idiom for iterating over lines at stdin:

import sys
for line in sys.stdin:
    sys.stdout.write(line)

My usage example (with above's code saved to iterate-stdin.py):

$ echo -e "first line\nsecond line"

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