Python week 4 2019 2020 for g10 by eng.osama ghandour

Agenda of LO CS.1.07 W1
1- Warm up Revision 10 min
2- ppt teacher demonstrate about Python 15m
3- Video about Python 5min
4- Practical work Students divided in pairs and use
Anaconda : Spyder or on line Python platform to
create very simple program using python
-3.8.1 7
- Questions and answers as pretest about Python 5 m
8-Refelection 5 min
9- Home work 5 min
Python
Eng. & Educator Osama
Ghandour

Warm Up
Listen to this video
Offline
On line
Python
Ghandour

Expressions
• expression: A data value or set of operations to compute
a value.
Examples: 1 + 4 * 3
42
• Arithmetic operators we will use:
– + - * / addition, subtraction/negation, multiplication,
division
– % modulus, a.k.a. remainder
– ** exponentiation
• precedence: Order in which operations are computed.
– * / % ** have a higher precedence than + -
1 + 3 * 4 is 13
– Parentheses can be used to force a certain order of evaluation.
(1 + 3) * 4 is 16
Ghandour
Revision

Numbers
• The usual suspects
• 12, 3.14, 0xFF, 0377, (-1+2)*3/4**5, abs(x), 0<x<=5
• C-style shifting & masking
• 1<<16, x&0xff, x|1, ~x, x^y
• Integer division truncates :-(
• 1/2 -> 0 # 1./2. -> 0.5, float(1)/2 -> 0.5
• Will be fixed in the future
• Long (arbitrary precision), complex
• 2L**100 -> 1267650600228229401496703205376L
– In Python 2.2 and beyond, 2**100 does the same thing
• 1j**2 -> (-1+0j) Eng. & Educator Osama
Ghandour
Revision

Variables
• variable: A named piece of memory that can store a value.
– Usage:
• Compute an expression's result,
• store that result into a variable,
• and use that variable later in the program.
• assignment statement: Stores a value into a variable.
– Syntax:
name = value
– Examples: x = 5
gpa = 3.14
x 5 gpa 3.14
– A variable that has been given a value can be used in expressions.
x + 4 is 9
• Exercise: Evaluate the quadratic equation for a given a, b, and c.
Ghandour
Revision

Syntax:
print "Message"
print Expression
–Prints the given text message or expression value on the
console, and moves the cursor down to the next line.
print Item1, Item2, ..., ItemN
–Prints several messages and/or expressions on the same line.
• Examples:
print "Hello, world!"
age = 45
print "You have", 65 - age, "years until
retirement"
Output:
Hello, world!
You have 20 years until retirement
print
Ghandour
Revision

•input : Reads a number from user input.
–You can assign (store) the result of input into a variable.
–Example:
age = input("How old are you? ")
print "Your age is", age
print "You have", 65 - age, "years until
retirement"
Output:
How old are you? 53
Your age is 53
You have 12 years until retirement
• Exercise: Write a Python program that prompts the
user for his/her amount of money, then reports how
many Nintendo Wiis the person can afford, and how
much more money he/she will need to afford an
additional Wii.
Input
Ghandour
Revision

Ghandour
Revision

Essential Questions
• 1- What is the different between
the data types? 2- What is the
different between the Constants
and Variables? 3- How can test a
program and debug its errors? 4-
Mission the Arithmetic and
Assignment Operators, and give
some examples.
Eng. & Educator Osama Ghandour

Textbook and Resource
Materials:
• https://www.w3schools.com/pytho
n/python_operators.asp
Evidence of Learning: create a
project with programming
language using Variables,
Constants Arithmetic, and
Assignment operators .
Ghandour

Math
Ghandour
Create, interpret and analyze quadratic functions that
model real-world situations. W1-4
Key Concepts:
o 1. Quadratic Function
o 2. First and second differences
o 3. Completing the square
o 4. Complex numbers
o 5. Parabola
o 6. Focus
o 7. Argand diagram
o 8. related roots

Mechanics
Ghandour
Learning Outcome: Use position, displacement, average and
instantaneous velocity, average and instantaneous
acceleration to describe 1-dimensional motion of an object.
W1-3
Key Concepts:
o 1. Position /Time graphs
o 2. velocity/Time graphs
o 3. Acceleration /Time graphs
o 4. Relative velocity.
o 5. Instantaneous velocity
o 6. Average velocity
o 7. Reference Frames

Connecting to Mechanics
Ghandour
Week 04 - Week 08
Learning Outcome: Use kinematic equations to
understand and predict 1-dimensional motion of
objects under constant acceleration , including vertical
(free-fall) motion under gravity.
Key Concepts:
 1. Area under a curve
 2. Kinematic equations for 1-D motion with constant
acceleration
 3. Free-fall motion

Physics
• . Fluids w1-3
• 2. Pressure
• 3. Manometer
• 4. Pressure gauge
• 5. Units of pressure
• 6. Effect of atmospheric pressure on boiling
point of water
• 7. Change in atmospheric pressure with
altitude
• 8. Pressure difference and force
• 9. Archimedes Principle
Ghandour

Repetition (loops)
and Selection (if/else)
What we will Learn today
?

Donkey work =
repetition = iteration –
loops – inside it there
are conditions

Text processing
• text processing: Examining, editing, formatting text.
– often uses loops that examine the characters of a string one
by one
• A for loop can examine each character in a string in
sequence.
– Example:
for c in "booyah":
print c
Output:
b
o
o
y
a
h
Ghandour

Strings and numbers
• ord(text) - converts a string into a
number.
– Example: ord("a") is 97, ord("b") is 98, ...
– Characters map to numbers using standardized
mappings such as ASCII and Unicode.
• chr(number) - converts a number into a string.
– Example: chr(99) is "c"
• Exercise: Write a program that performs a rotation
cypher.
– e.g. "Attack" when rotated by 1 becomes "buubdl"
Ghandour
Python

DrawingPanel
• To create a window, create a drawingpanel
and its graphical pen, which we'll call g :
from drawingpanel import *
panel = drawingpanel(width, height)
g = panel.get_graphics()
... (draw shapes here) ...
panel.mainloop()
• The window has nothing on it, but we can
draw shapes and
lines on it by sending commands to g .
– Example:
g.create_rectangle(10, 30, 60, 35)
g.create_oval(80, 40, 50, 70)
g.create_line(50, 50, 90, 70)
Ghandour

Graphical commands
Command Description
g.create_line(x1, y1, x2, y2) a line between (x1, y1), (x2, y2)
g.create_oval(x1, y1, x2, y2) the largest oval that fits in a box with
top-left corner at (x1, y1) and bottom-
left corner at (x2, y2)
g.create_rectangle(x1, y1, x2, y2) the rectangle with top-left corner at
(x1, y1), bottom-left at (x2, y2)
g.create_text(x, y, text="text") the given text at (x, y)
• The above commands can accept optional outline and fill
colors.
g.create_rectangle(10, 40, 22, 65,
fill="red", outline="blue")
• The coordinate system is y-inverted:
(0, 0)
(200, 100)
Ghandour

Drawing with loops
• We can draw many repetitions of the
same item at different x/y positions with
for loops.
– The x or y assignment expression contains
the loop counter, i, so that in each pass of
the loop, when i changes, so does x or y.
from drawingpanel import *
window = drawingpanel(500, 400)
g = window.get_graphics()
for i in range(1, 11):
x = 100 + 20 * i
y = 5 + 20 * i
g.create_oval(x, y, x + 50, y + 50, fill="red")
window.mainloop()
• Exercise: Draw the figure at right.
Eng. & Educator Osama Ghandour

Further programming
• Lab exercises
– Let's go downstairs to the basement computer
labs!
– All resources are available at the following URL:
• http://faculty.washington.edu/stepp/cs4hs/
• What next?
– Lists , Dictionaries , data structures
– Algorithms: searching, sorting, recursion, etc.
– Objects and object-oriented programming
– Graphical user interfaces, event-driven
programming Eng. & Educator Osama
Ghandour

Check your email to Solve the
Online auto answered
quiz 15 min after
school the quiz will be
closed in 10:00pm
after
tomorrow
Ghandour
Python

Repetition (loops) in
Python.
Offline On line
Offline On line
Ghandour
Python

Selection (if/else) in
Python
Offline On line
Offline On line
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Python

Read /write to Arduino pins
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Now you can plug the usb cable
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Run Arduino UNO with PyFirmata
library
Ghandour

Ghandour

Communicate with standard Firmata
as downloading it to Arduino
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Now you can un plug
Ghandour

Arduino Temperature control
Ghandour

Summary
1-Repetition (loops).
2- Selection (if/else).
3- Compile the program (Run).
Ghandour
Python

Prepare for next week
According to student’s law
Gn=Wn % Ng
CS.1.07 - 1- Gain knowledge
and understanding the
meaning of computer
language? 2- Draw conclusions
about concepts
Ghandour
Python

Reflection
• What is your goal to accomplish in
next week End Using Python?
Eng. and Educator Osama
Ghandour
Python

Home work (s. proj.) 1
• Create a presentation contains some
concepts of computer languages (Python)
and display the Concepts of Repetition
(loops) and Selection (if/else)following the
bellow rubric .
Ghandour
Python

Home work (s. project.) 2
• you studied in physics about
• electric power and in your capstone about
saving wasted energy or saving or
generating enegy in personla scale so
design a flowchart for Arduino control
circuit to save the consumed energy in
electric power circuit . Note : an ideal
electric system has power factor PF=0.999
and very low reactive power.
• .
Eng. and Educator Osama Ghandour
Python

Rubaric
Blue
Design a presentation showing Python to contain some
concepts Repetition (loops)
and Selection (if/else)
Green
Design a presentation showing Python to contain one or
2 Repetition (loops) and Selection (if/else).
Yello
w
missing two points of green level.
Read No presentation .
Ghandour
Python

Resources
• https://www.youtube.com/watch?v=Rtww83GH
0BU
• Other materials:
• https://www.sololearn.com
• https://www.w3schools.com
• www.python.org
Ghandour
Python

Resources
• https://www.youtube.com/user/osmgg2
Other materials:
• https://www.sololearn.com
• https://www.w3schools.com
• www.python.org
• “Learning Python,” 2nd edition, Mark Lutz
and David Ascher (O'Reilly, Sebastopol, CA,
2004) (Thorough. Hard to get into as a quick
read)
Ghandour
Python

Learn and practice through on line web sites
https://www.thewebevolved.com
https://www.123test.com/
https://www.wscubetech.com/
https://www.w3schools.com/
https://www.guru99.com
https://codescracker.com/exam/review.php
https://www.arealme.com/left-right-brain/en/
https://www.proprofs.com/
https://www.geeksforgeeks.org/
https://www.tutorialspoint.com
https://www.sololearn.com
http://www.littlewebhut.com/
Ghandour
Python

Thanks
Engineer and educator/ Osama G. Geris
Ghandour
Python

Python week 4 2019 2020 for g10 by eng.osama ghandour

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