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The latest code snippets.

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FileRecursionWalk

Walk a Directory Tree

Use os.walk to enumerate every file under a path.

Author: chris
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DictsSort

Sort a List of Dicts

Sort a list of dicts by a key with sorted() + itemgetter for speed.

Author: chris
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CaptureRegex

Regex with re.search

Use named groups with the re stdlib and access them via groupdict().

Author: chris
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DigestHashSha256

SHA256 Hash in Python

Use hashlib to compute a SHA256 hex digest.

Author: chris
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JsonSerialization

Parse and Dump JSON

Round-trip JSON with the json stdlib module.

Author: chris
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GetHttpRequests

HTTP GET with requests

GET a URL with the requests library and raise on non-2xx.

Author: chris
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FileIo

Write Lines to a File

Open a file for writing and emit a few lines.

Author: chris
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FileIo

Read a File Line by Line

Iterate a text file lazily with a context manager.

Author: chris
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CliNodeYargs

CLI Arguments with yargs (Node)

Declare commands and flags with yargs in a Node script.

Author: chris
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AsyncConcurrency TagPromises

Promise.all for Parallel Awaits

Issue several HTTP requests in parallel with Promise.all.

Author: chris
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