The elif Statement

The elif statement allows you to check multiple expressions for TRUE and execute a block of code as soon as one of the conditions evaluates to TRUE.

So….. Whast the diference with Else???? isn`t just the same??

unlike else, for which there can be at most one statement, there can be an arbitrary number of elif statements following an if.

Can you show me an example 

if country == "US":
    if total <= "50":
        print "Shipping Costs $6.00"
    elif total <= "100":
            print "Shipping Costs $9.00"
    elif total <= "150":
            print "Shipping Costs $12.00"
    else:
        print "FREE"

Reference

https://www.tutorialspoint.com/python/python_if_else.htm

New Lenguages

Conditional IF

well if you dont know about this you can go with this dude 

he can teach you about this,  plus the good thing its that you can find him in the campus.

He is legend…… wait fot it… dary, Legendary!

I can try to explain you really easy so IF is use to  create true or false statemente so for example:

its like  if you already get laid more less than  4 times(assuming your not an ISC right) send losser, if is more than 4 send   Nice bro!

so the thing you wnat to do is you want to type:

Laid = int(raw_input(“Virgin: “) )

if Virgin >=  4

print”Nice Bro!”

if Virgin < 4

print”LOSER, you are probably an engineering”

 

BYE!

 

 

Using modules

first of all we need to know what is a module! its like if you want to use a playstation without knowing what is a playtation, right ?

well, A module is a file containing Python definitions and statements. The file name is the module name with the suffix .py appended.

its really easy to understand right?

for using a library you use import. i really dont think i can explain you better than this video so i lilve you the link right here

Enjoy!

Functions

A function is a reusable code that is used to perform a single, related action.

Functions provide better modularity for your application and a high degree of code reusing.

So the most awesome thing is that you actually can make your own function. These functions are called user-defined functions.

• Function blocks begin with the keyword def followed by the function name and parentheses ( ( ) ).

• Any input parameters or arguments should be placed within these parentheses. You can also define parameters inside these parentheses.

• The first statement of a function can be an optional statement – the documentation string of the function or docstring.

• The code block within every function starts with a colon (:) and is indented.

• The statement return [expression] exits a function, optionally passing back an expression to the caller. A return statement with no arguments is the same as return None.

i found something else that i didnt know, is that it exist Anonymus Functions, i founf out how  is permited using them and how to put it, but im not sure how to use them, so if annyone in #TC101 knows how and when its better to use a Annonymus Functions Please Share this with me

also i found this really cool website, its like Python For dommies, so if you are feelling like a dummy and you want to lear Python just click here

source here

Basic data Types

the basic data type is booleans , numeric, sequences , and mapping

Booleans are values that can only be True or False,

Python supports four different numerical types −

• int (signed integers): They are often called just integers or ints, are positive or negative whole numbers with no decimal point.
• long (long integers ): Also called longs, they are integers of unlimited size, written like integers and followed by an uppercase or lowercase L.
• float (floating point real values) : Also called floats, they represent real numbers and are written with a decimal point dividing the integer and fractional parts. Floats may also be in scientific notation, with E or e indicating the power of 10 (2.5e2 = 2.5 x 10² = 250).
• complex (complex numbers) : are of the form a + bJ, where a and b are floats and J (or j) represents the square root of -1 (which is an imaginary number). The real part of the number is a, and the imaginary part is b. Complex numbers are not used much in Python programming.

Sequence is divided in

• str- string
• unicode- it allows you to decode wich can either be an 8-bit string or a character buffer using the codec  will enconding an error
• list
• tuple- items are the same and in the same order as iterable‘s items. iterable may be a sequence, a container that supports iteration, or an iterator object. If iterable is already a tuple, it is returned unchanged. For instance, tuple('abc') returns ('a', 'b', 'c') and tuple([1, 2, 3]) returns (1, 2, 3). If no argument is given, returns a new empty tuple, ()
• bytearray- is a mutable sequence of integers in the range 0 <= x < 256. It has most of the usual methods of mutable sequences, described in Mutable Sequence Types, as well as most methods that the str type has, see String Methods.
• buffer
• xrange-This function is very similar to range(), but returns an xrange object instead of a list. This is an opaque sequence type which yields the same values as the corresponding list, without actually storing them all simultaneously. The advantage of xrange() over range() is minimal (since xrange() still has to create the values when asked for them) except when a very large range is used on a memory-starved machine or when all of the range’s elements are never used (such as when the loop is usually terminated with break).

 

Source HERE and  here

A mapping object

maps immutable values to arbitrary objects. Mappings are mutable objects. There is currently only one standard mapping type, the dictionary. A dictionary’s keys are almost arbitrary values. Only values containing lists, dictionaries or other mutable types (that are compared by value rather than by object identity) may not be used as keys.

 

 

 

Using If & Else to set an alarm.

Nicee !!!

Carolina's Blog Site

So, Alex (@hkael.wordpress.com) and I created a program using if and else statements to set an alarm. It took awhile, and at the end, we realized:

a) it doesn’t take into account minutes, which would make it a more complex piece of code, and we like, don’t know how to do it-YET!

b) Ken told us there’s actually already a module that does this.

Lol. It was fun though.

Enjoy the screenshots.

SO…..Later today I had a life altering realization. I thought the print function would only display strings, so I also converted integer values to strings and displayed all of them using +++. But I just discovered you can totally print stuff that has strings and integers, as long as you separate them with ,,,,. Whoa.

I know this doesn’t seem like much of a difference, but I feel like it’s always better to be zenny about it and write…

View original post 4 more words

Input python

inputs are functions that allows us to make a sequence.

Today we are going to see he diference between using an input, a raw_input
First we are gonna start with inputs.

inputs allows the users to modify a variable,

Input Example

“raw_input” doesn’t convert the input and takes the input as it is given. Its advisable to use raw_input for everything.

You insert the raw input the same way as an input!! 

Zen of python

The zen of Python is a collection of 19 softwares written by Tim Peters in 1999.

this can be found in Python website, just click here

its actually really cool  and it has a eastern egg, that  dindt get so well at first, but is kind of a funny hidden message.

#ZenOfPython

#Python

Comments in Python

I´m not an expert on python but like in any other languague comments are really helpfull and they have 3 main purposes;

1°for people that are reading your code: imagine you are working with more people, they need to be able to know what you have just done.

2° for you: when you are programming, the codes are really long and some times over the time you want to go back to correct something, so it´s easier to know what you done and where it is.

3°  reference

 When you are writting something you want to make sure to use comments, fpr this reasons,

¿how do you put comments in python?

with a #

So everithing after the # python its going to ignore, and it wont put it as a part of the command

and there are two ways you can put it 

alone in a line

in a line with code ( make sure the code is before the # )