Popular recipes tagged "meta:loc<10"

Inserting Images on PDF Pages (Python)

2017-05-17T21:10:26-07:00

Python recipe 580803 by Jorj X. McKie (fitz, mupdf, pdf, pymupdf).

Version 1.11.0 of PyMuPDF allows putting an image on an existing PDF page. The following example puts the same image on every page of a given PDF - like a thumbnail.

Shoelace Formula for polygonal area (Python)

2017-07-17T05:53:45-07:00

Python recipe 580812 by Paddy McCarthy (2d, area).

Copied, by author from "Paddy3118 Go deh!: Python investigation of the Shoelace Formula for polygonal area http://paddy3118.blogspot.com/2017/07/python-investigation-of-shoelace.html#ixzz4n43Dqhaa " Where there is more meat on the bone (under a different license though).

groupby() For Unsorted Input (Python)

2017-05-12T10:40:58-07:00

Python recipe 580800 by Alfe (algorithm, datastructures, generators, grouping, lazy).

We all know the groupby() which is available in the itertools standard module. This one yields groups of consecutive elements in the input which are meant to be together in one group. For non-consecutive elements this will yield more than one group for the same key.

So effectively, groupby() only reformats a flat list into bunches of elements from that list without reordering anything. In practice this means that for input sorted by key this works perfect, but for unsorted input it might yield several groups for the same key (with groups for other keys in between). Typically needed, though, is a grouping with reordering if necessary.

I implemented a likewise lazy function (yielding generators) which also accepts ungrouped input.

Rotate a PDF page in 3 lines (Python)

2016-11-06T11:33:59-08:00

Python recipe 580713 by Jorj X. McKie (fitz, mupdf, pdf, pymupdf). Revision 2.

PyMuPDF v1.9.3 now supports several new features for manipulating PDFs.

Here is an example to rotate a page with just a few lines of Python code.

Merge unique items from multiple lists into a new list (Python)

2016-04-05T18:11:49-07:00

Python recipe 580634 by Johannes S (lists, merge, python, set). Revision 2.

Suppose you have multiple lists. You want to print all unique items from the list. Now, what you could do is merge the lists into one_big_list (e.g., a + b +c), and then iterate over each item in one_big_list, etc. The solution proposed here gets this done faster and in one line of code. How? By using a python set. A python set is a dictionary that contains only keys (and no values). And dictionary keys are, by definition, unique. Hence, duplicate items are weeded out automatically. Once you have the set, you can easily convert it back into a list. As easy as that!

tic (Python)

2016-07-29T01:52:11-07:00

Python recipe 580693 by YasGon . Revision 2.

toe

Python one-liner to compare two files (Python)

2016-03-28T21:36:31-07:00

Python recipe 580632 by Vasudev Ram (comparison, file, files, programming, python).

As the title says ...

It prints True if the files compared are the same, and False if they differ (either in size or in content).

Generate a set of random integers (Python)

2016-02-18T19:34:17-08:00

Python recipe 580613 by Lance Spence (numbers, random).

This is just a short and simple script that generates a set of random numbers. You enter how many random numbers you want and the program will generate them.

The num is multiplied by 10 in the upper limit within the for loop to give you larger generated integers. Adjust it as needed.

Set the logging level to every logger (Python)

2015-10-28T23:16:26-07:00

Python recipe 579119 by Tim McNamara (configuration, logging).

Python's logging allocates a name to every logger. That makes it hard to do something like, setting everything to logging.ERROR. Here's one way you might go about that:

Add function to Python's builtin module through C API - makefile (Text)

2015-10-16T12:11:36-07:00

Text recipe 579111 by airween (api, c, makefile, python).

Makefile for add function to __builtin__ module through C API.

C source is here:

https://code.activestate.com/recipes/579110-add-function-to-__builtin__-module-through-c-api/

Python script is here:

https://code.activestate.com/recipes/579112-add-function-to-__builtin__-module-through-c-api-c/

Hivemind (Python)

2015-07-15T12:37:13-07:00

Python recipe 579082 by Oscar Byrne (borg, defaultdict, hash, hashing, hivemind, python, singleton, state).

Inspired by the ever-popular Borg pattern, objects inheriting from Hivemind share state if initialised with the same arguments

Drop a minimal, valid Windows executable file to disk, for testing (Python)

2015-03-03T10:47:32-08:00

Python recipe 579029 by Simon Harrison (executable, pe, windows). Revision 3.

Sometimes I need to create a valid windows executable file from a Python script for the sake of running a test.

hollow (Perl)

2015-03-08T22:16:06-07:00

Perl recipe 579033 by Jyh Chong .

!/usr/bin/perl -w

 print "Content-type: text/html\n\n";
 print "Hello, world";

smart copy (Python)

2015-02-06T09:45:12-08:00

Python recipe 579020 by yota (shutil).

take a glob expression, a source directory and a destination directory to copy each files matching the glob in the appropriate directory

glob = */*.txt
src_dir = ./a/b
dst_dir = /z/x/y

if the glob match a file ./a/b/c/foo.txt, it will copy it in /z/x/y/c/foo.txt (and create the missing directory if needed)

Require Python3.4, code tab indented

Get external IP & geolocation in bash. (Bash)

2014-11-30T00:46:28-08:00

Bash recipe 578972 by manu (bash, geocoding, geolocation). Revision 2.

Very simple way to get external IP and geolocation uysing dig and geoiplookup.

dig is cool to obtain my external IP and I use geoiplookup to convert IP to location. You need geoip-bin and, geoip-database (and/or geoip-database-contrib and geoip-database-extra). In Debian, database seems update monthly.

It's just a tip.

Proxying WCF service (XML)

2014-11-07T13:03:18-08:00

XML recipe 578958 by Tomáš Rampas (dotnet, fiddler, wcf).

Sometimes capturing WCF service communication e.g. with Fiddler is necessary. Following is the part of WCF service application config proxying WCF to localhost:8888

Random Password Generation (Python)

2014-08-10T15:50:40-07:00

Python recipe 578920 by Paul Wolf (generator, password, python, random, string, strong).

Generate a password (or other secure token) using a pattern language similar to regular expressions. We'll use the strgen module that enables a user to generate test data, unique ids, passwords, vouchers or other randomized data very quickly using a template language. The template language is superficially similar to regular expressions but instead of defining how to match or capture strings, it defines how to generate randomized strings.

Greatest common divisor (Python)

2014-09-19T08:03:02-07:00

Python recipe 578937 by juan .

Calculate the Greatest common divisor from two numbers

list all locale (Python)

2014-04-19T13:41:38-07:00

Python recipe 578863 by Shane Wang .

list all locales via Python

create a unique session key (Python)

2014-07-03T16:32:53-07:00

Python recipe 578903 by john stinson (generator, sessions).

A simple function that will generate a secure and unique session key.