Popular recipes tagged "meta:loc=15"

Insert a Text Box in a PDF page (fitz / PyMuPDF) (Python)

2017-06-29T22:54:25-07:00

Python recipe 580809 by Jorj X. McKie (fitz, mupdf, pdf, textbox).

This method inserts text into a predefined rectangular area of a (new or existing) PDF page. Words are distributed across the available space, put on new lines when required etc. Line breaks and tab characters are respected / resolved. Text can be aligned in the box (left, center, right) and fonts can be freely chosen. The method returns a float indicating how vertical space is left over after filling the area.

Reverse the sequence of annotations on a PDF page (Python)

2017-01-22T14:02:16-08:00

Python recipe 580733 by Jorj X. McKie (annotation, fitz, mupdf, pdf). Revision 2.

Just another demonstration of PyMuPDF's features to deal with annotations:

Take a page with several annotations and let them change places in reverse order: first and last annot exchange their rectangles, second and second to last, etc.

The annotation images are enlarged or compressed as required to fit into their new areas.

merge multiple list into a single list eliminating the duplicates (Python)

2016-04-04T09:41:07-07:00

Python recipe 580633 by deriensk .

I have got 20-25+ lists in python and I want to check all the items within the list and put single items into a new list.

Calculating e using Continued Fraction (Python)

2013-09-02T18:49:53-07:00

Python recipe 578653 by FB36 (math, mathematics).

Calculating e using Continued Fraction

Get external IP (Text)

2013-07-01T05:52:39-07:00

Text recipe 578584 by greg zakharov (ipv4). Revision 2.

In addition to the posts about IPv4. Examples on Python.

Dice (Python)

2013-07-11T15:34:51-07:00

Python recipe 578601 by superducktoxic .

Choose a die and the program will give you the answer.

Create a nested dictionary from os.walk (Python)

2011-09-26T23:38:24-07:00

Python recipe 577879 by Andrew Clark (dictionary, os_walk). Revision 2.

Creates a nested dictionary that represents a folder structure. Here is an example of what the resulting dictionary might look like:

{
    "root": {
        "folder2": {
            "item2": None, 
            "item1": None
        }, 
        "folder1": {
            "subfolder1": {
                "item2": None, 
                "item1": None
            }, 
            "subfolder2": {
                "item3": None
            }
        }
    }
}

Hash collision probability / Birthday problem (Python)

2012-12-21T09:32:54-08:00

Python recipe 578387 by Sander Evers (birthday, collision, hash).

Calculates the probability that, when making k random selections out of n possibilities, at least two of the selections are the same. See: http://en.wikipedia.org/wiki/Birthday_problem

What is the probability that (at least) two people in a class of 30 share their birthday?

>>> collide(30,365)
0.7063162427192688

What is the probability that ORA_HASH generates the same hash when hashing 25000 values?

>>> collide(25000,int(4.3e9))
0.07009388771353198

Averaging Literal Numbers (Python)

2012-12-06T13:44:42-08:00

Python recipe 578365 by Stephen Chappell (algorithms, demonstration, numbers).

One program that a teacher may assign to beginning programming students would be to take a list of numbers and average them together. This recipe does just that and is designed to be easy to read and follow, showing what is possible with a few lines of Python.

unicode Command line histograms (Python)

2012-10-18T10:08:09-07:00

Python recipe 578293 by Enrico Giampieri . Revision 3.

A simple recipe to show on a command line the histogram of a data distribution, using numpy to perform the histogram and the unicode bar characters to show the resulting plot

URL shortner using Bit.ly api (Python)

2012-09-14T08:37:39-07:00

Python recipe 578263 by aamir hussain (api, bitly, python, urlshortner).

URL shortner using Bit.ly api

Context manager to atomically replace a file (Python)

2012-06-17T12:09:49-07:00

Python recipe 578166 by Oren Tirosh (atomic, contextmanager, file, replace). Revision 3.

This context manager ensures that a file's content is either replaced atomically with new contents or left unchanged. An exception or other error will not leave it empty or with partial content.

Converts from decimal to any base ( between 2 and 26 ) (Python)

2011-02-24T00:33:07-08:00

Python recipe 577586 by Shashwat Anand (algorithms, base).

This function takes in any base-10 integer and returns the string representation of that number in its specified base-n form. The code was inspired from http://code.activestate.com/recipes/65212-convert-from-decimal-to-any-base-number/ , thereby improving upon it.

JSON instead of pickle for memcached (Python)

2012-01-10T22:31:36-08:00

Python recipe 578011 by pavel (cache, json, memcache, memcached, pickle).

Standard memcache client uses pickle as a serialization format. It can be handy to use json, especially when another component (e.g. backend) does'n know pickle, but json yes.

Syntactic sugar to create XHTML hierarchies with ElementTree (Python)

2012-01-18T22:15:58-08:00

Python recipe 578020 by Alain Mellan (xml).

Simplify the code when creating XHTML or XML hierarchies with ElementTree.

Usually, I have code like this:

table = ET.SubElement(body, 'table')
table.attrib['border'] = '1'

tr = ET.SubElement(table, 'tr')
ET.SubElement(tr, 'td').text = 'some text'

Using Python's __getattr__ and partial function evaluation allows to create an object that will yield a much simplified syntax.

A Komodo macro for duplicating the current file in Komodo 6 (JavaScript)

2011-02-03T23:47:41-08:00

JavaScript recipe 577562 by Eric Promislow (copy, files).

The project/file API changed significantly moving from Komodo 5 to 6. Specifically, the project manager and file manager have been split into two separate modules.

Here's some code to duplicate the current file, using Komodo 6. Note that it uses an internal function - I've made a note that the function has been effectively published, and needs to preserve its current interface.

Get the Name of the Current Method (JavaScript)

2011-01-03T20:49:58-08:00

JavaScript recipe 577532 by Eric Promislow (codeintel, komodo, sections).

Here's a snippet for Komodo JavaScript macros that gives the name of the current method

slugify: make a string usable in a URL or filename (Python)

2010-06-07T04:11:55-07:00

Python recipe 577257 by Trent Mick (ascii, django, filename, slug, slugify, url). Revision 2.

"Slugify" a string so it is ascii, has only alphanumeric and hyphen characters. Useful for URLs and filenames. This is heavily based on the slugify in Django.

Note: presumes that you've import red higher up in your module.

Support and warranty information using WMI (Python)

2011-03-17T22:07:43-07:00

Python recipe 577123 by Michael Grünewald (thinkpad, win32, wmi). Revision 2.

Shows the product code and serial number of a Thinkpad (of any computer with those information actually) and opens the Lenovo support and warranty pages for that system. It might work with other Lenovo computers too.

Progress Bar for Console Programs as Iterator (Python)

2010-03-26T20:04:02-07:00

Python recipe 576986 by Michael Grünewald (console, cui, progress). Revision 6.

A small proxy iterator showing a progress bar on the console. Only works with iterators that provide a length (i.e. len(iterator) must be defined).