A periodic table API.
Project description
Periodic
A python API/console script for the periodic table.
Created by Luis Naranjo <luisnaranjo733@hotmail.com>
Documentation at http://periodic.readthedocs.org
Installation
>>> pip install periodic
Basic Usage
Retrieve element as an object
>>> from periodic import element >>> hydrogen = element('hydrogen') >>> hydrogen.mass 1.0079
Advanced database queries (using sqlalchemy)
>>> from periodic.table import session, Element >>> session.query(Element).order_by(Element.mass).all()[-4:] # 4 heaviest elements (by mass) [<Element('Uup', '115')>, <Element('Uuq', '114')>, <Element('Uuh', '116')>, <Element('Uuo', '118')>]
ASCII Table
>>> import periodic >>> print periodic.table ----- ----- 1 | H | |He | |---+---- --------------------+---| 2 |Li |Be | | B | C | N | O | F |Ne | |---+---| |---+---+---+---+---+---| 3 |Na |Mg |3B 4B 5B 6B 7B | 8B |1B 2B |Al |Si | P | S |Cl |Ar | |---+---+---------------------------------------+---+---+---+---+---+---| 4 | K |Ca |Sc |Ti | V |Cr |Mn |Fe |Co |Ni |Cu |Zn |Ga |Ge |As |Se |Br |Kr | |---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---| 5 |Rb |Sr | Y |Zr |Nb |Mo |Tc |Ru |Rh |Pd |Ag |Cd |In |Sn |Sb |Te | I |Xe | |---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---| 6 |Cs |Ba |LAN|Hf |Ta | W |Re |Os |Ir |Pt |Au |Hg |Tl |Pb |Bi |Po |At |Rn | |---+---+---+------------------------------------------------------------ 7 |Fr |Ra |ACT| ------------- ------------------------------------------------------------- Lanthanide |La |Ce |Pr |Nd |Pm |Sm |Eu |Gd |Tb |Dy |Ho |Er |Tm |Yb |Lu | |---+---+---+---+---+---+---+---+---+---+---+---+---+---+---| Actinide |Ac |Th |Pa | U |Np |Pu |Am |Cm |Bk |Cf |Es |Fm |Md |No |Lw | -------------------------------------------------------------
Interactive shell (Console script)
Periodic provides an originally named console script called ‘periodic’.
It’s usage for now is limited to periodic table reference.
In the future, it will be able to do with elements!
This interactive shell may also be invoked from the python interpreter:
>>> import periodic >>> periodic.interactive_shell()
Or from the command line:
$ periodic
Enter any of the following periodic values of the element you are looking for: ['atomic', 'symbol', 'name', 'mass'] Use ^C or type 'exit' to exit. ======================================================================== > 12 atomic: 12 symbol: Mg name: Magnesium mass: 24.305 ======================================================================== > uranium atomic: 92 symbol: U name: Uranium mass: 238.02891 ======================================================================== > H atomic: 1 symbol: H name: Hydrogen mass: 1.00794 ======================================================================== > 15.9994 atomic: 8 symbol: O name: Oxygen mass: 15.9994 ========================================================================
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