earthgecko

#!/bin/bash
# bash generate random alphanumeric string
#

# bash generate random 32 character alphanumeric string (upper and lowercase) and 
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)

# bash generate random 32 character alphanumeric string (lowercase only)
cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1

atenni

Problem: When linking to the raw version of a gist, the link changes with each revision.

Solution:

To return the first file from a gist: https://gist.github.com/[gist_user]/[gist_id]/raw/

• Example: https://gist.github.com/atenni/5604522/raw/
• Works even when you change the filename.

To get a file from multi–file gist: https://gist.github.com/[gist_user]/[gist_id]/raw/[file_name]

myusuf3

To remove a submodule you need to:

• Delete the relevant section from the .gitmodules file.
• Stage the .gitmodules changes git add .gitmodules
• Delete the relevant section from .git/config.
• Run git rm --cached path_to_submodule (no trailing slash).
• Run rm -rf .git/modules/path_to_submodule (no trailing slash).
• Commit git commit -m "Removed submodule "
• Delete the now untracked submodule files rm -rf path_to_submodule

reedobrien

import json
import boto3
settings = {
    "aws.cloudsearch.doc":
    "<doc-ep>",
    "aws.cloudsearch.search":
    "<search-ep>"
}
from avail.aws.cloudsearch import get_cloudsearch_endpoint_from_settings
doc = get_cloudsearch_endpoint_from_settings("doc", settings)

leycec

#!/usr/bin/env python3

'''
`@beartype` decorator, implementing a rudimentary subset of PEP 484-style type
checking based on Python 3.x function annotations.

See Also
----------
https://stackoverflow.com/a/37961120/2809027
    Stackoverflow answer introducing the `@beartype` decorator.

nor0x

    var _fetchedResultsController: NSFetchedResultsController<Entity>? = nil
    var blockOperations: [BlockOperation] = []

    var fetchedResultController: NSFetchedResultsController<Entity> {
        if _fetchedResultsController != nil {
            return _fetchedResultsController!
        }
        
        let fetchRequest: NSFetchRequest<Entity> = Entity.fetchRequest()
        let managedObjectContext = (UIApplication.shared.delegate as! AppDelegate).managedObjectContext!

pgolding

Handling of StreamingBody Response from Invoking a Lambda Function

When calling a Lambda Function via Boto3, the returned object is something like:

{u'Payload': <botocore.response.StreamingBody object at 0x7f8d5b62ac50>, 
'ResponseMetadata': {'RetryAttempts': 0, 'HTTPStatusCode': 200, 'RequestId': '5bdbb3ca-3b35-11e7-9816-397b140c3bac', 'HTTPHeaders': {'x-amzn-requestid': '5bdbb3ca-3b35-11e7-9816-397b140c3bac', 'content-length': '1636', 'x-amzn-trace-id': 'root=1-591ca199-00d34d5474d16275ec2c8d10;sampled=0', 'x-amzn-remapped-content-length': '0', 'connection': 'keep-alive', 'date': 'Wed, 17 May 2017 19:16:41 GMT', 'content-type': 'application/json'}}, u'StatusCode': 200}

The Payload parameter is <botocore.response.StreamingBody> which is a data streaming object.

tobywf

from io import BytesIO
import gzip
import shutil


def upload_gzipped(bucket, key, fp, compressed_fp=None, content_type='text/plain'):
    """Compress and upload the contents from fp to S3.

    If compressed_fp is None, the compression is performed in memory.
    """

dvalters

Disk space usage

Here are some notes on the various ways to check disk space usage on linux:

Disk usage of all (non-hidden) files and folders

Using the du command (disk use) with the -s (summarize) and -h (human-readable) options.

du -sh *

korakot

# install chromium, its driver, and selenium
!apt update
!apt install libu2f-udev libvulkan1
!wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
!dpkg -i google-chrome-stable_current_amd64.deb
!wget https://edgedl.me.gvt1.com/edgedl/chrome/chrome-for-testing/118.0.5993.70/linux64/chromedriver-linux64.zip
!unzip -j chromedriver-linux64.zip chromedriver-linux64/chromedriver -d /usr/local/bin/
!pip install selenium chromedriver_autoinstaller

# set options to be headless, ..