Commit fc3787e0 authored by Nicolas  MAILLET's avatar Nicolas MAILLET

Add CM/TP1

parent 81a7f4b4
""" TP1 where we learn a bit of Python"""
# First test
print("Hello World!")
# Variable and if
my_variable = True
if my_variable:
print("Hello World!")
# Create a list
my_list = [1, 1, 2, 3, 5, 8, 13, 21]
print(my_list)
# Add something in a list
my_list = [1, 1, 2, 3, 5, 8, 13, 21]
my_list.append(42)
print(my_list)
# Access to a subpart of a list
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
print(my_list[0:5])
# Get the size of a list
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
size_list = len(my_list)
print(size_list)
# Access to a subpart of a list
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
size_list = len(my_list)
print(my_list[5:size_list])
# Access to last elements
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
print(my_list[-1])
# Access to the second last element
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
print(my_list[-2])
# Notion of step: going from index 3 to the end
# but every 2 values
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
print(my_list[3:len(my_list):2])
# Notion of step: going from index 3 to the end
# but every 2 values
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
print(my_list[3::2])
# Step in list
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
for i in my_list[3:len(my_list):2]:
print(i)
# Reverse the order
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
print(my_list[::-1])
# Reverse the order, with start/end
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
print(my_list[7:2:-1])
# Reverse the order, with start/end and step
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
print(my_list[7:2:-2])
# Concatenate two lists
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
my_other_list = ["Hello", "World", "Pwet"]
result = my_list + my_other_list
print(result)
# Strings are lists
my_char = "Hi all!"
print(my_char[5:2:-1])
# List are objects
my_list = [1, 2, 3]
my_other_list = my_list
my_other_list.append(5)
print(my_list)
# Correct way of creating a copy of a list
my_list = [1, 2, 3]
my_other_list = list(my_list)
my_other_list.append(5)
print(my_list)
# Simple for
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
for i in my_list:
print(i)
# For with step/beg/end
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
for i in my_list[7:2:-1]:
print(i)
# While loop
my_list = [1, 1, 2, 3, 5, 8, 13, 21, 42]
i = 0
while i < len(my_list):
print(my_list[i])
i += 1
# Example of dict
my_dict = {}
my_dict["keys1"] = 5
my_dict["keys2"] = 6
my_dict[42] = "Pwet"
print(my_dict)
print(my_dict[42])
# Print keys or values of a dict
print(my_dict.keys())
print(my_dict.values())
# Play with values
for i in my_dict.values():
print(i)
# Import a module
import random
# Define a new function
def my_function():
# Get a random number between 2 and 5
my_rand = random.randint(2, 5)
# If this number is 4...
if my_rand == 4:
# Print something
print("Random")
# Execute the function
my_function()
# Argument in functions
def my_function(arg):
# If the string version of arg is not Pwet
if str(arg) != "Pwet":
# Print it
print(arg)
else:
# Else, print something else
print("Zbla")
# Try the function
my_function(3)
my_function("Poulpe")
my_function("Pwet")
# Return a value
def my_function(arg):
# The variable that will be returned
ret = "Zbla"
# If the string version of arg is not Pwet
if str(arg) != "Pwet":
# Modify the variable
ret = arg
# Return it
return ret
# Try the function
print(my_function(3))
print(my_function("Poulpe"))
print(my_function("Pwet"))
# Return several values
def my_function(arg):
ret = "Zbla"
# If the string version of arg is not Pwet
if str(arg) != "Pwet":
# Modify the variable
ret = arg
# Return it and its length
return ret, len(str(ret))
# Try the function
print(my_function("Pwet"))
# Access like a list to returned values
print(my_function("Pwet")[0])
print(my_function("Pwet")[1])
class MyObject:
""" Creating a new simple object """
# Initialize the object
def __init__(self, arg1, arg2=None): # Arg2 is optional
self.arg1 = arg1
self.arg2 = arg2
# If arg2 does not exist, initialize a list
if self.arg2 is None:
self.arg2 = []
# self representation for print
def __repr__(self):
return "Arg1 is {}\nArg2 has a size of {}".format(self.arg1, len(self.arg2))
def a_function(self, a_value):
""" Internal function of the object """
# Return the concatenation arg1 and a_value
return str(self.arg1) + str(a_value)
test = MyObject("Pwet", [0, 1, 3])
print(test)
print(test.a_function(10))
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