Python with Turtle
Python with Turtle is a Python library that enables you to create virtual drawings and shapes. The. “turtle” is a the pen that you use to draw.
Python Turtle Cheat Sheet
down(): Sets the pen state to be down (drawing). turtle.right(degrees): Turns the direction that the turtle is facing right (clockwise) by the amount indicated
Modelling the Turtle Python library in CSP
Python's Turtle package provides a mobile agent which we formally model here using Communicating Sequential Processes (CSP). Our interactive toolchain
Python 3 – Turtle graphics
Other functions need to be imported into your. Python program. ? The turtle module needs to be imported at the start of any Python program that uses it:.
Chapter 13 Turtle Graphics
modules called turtle and tkinter
GCSE L1-L2 Computer Science 2020 Programming Language
The PLS supports these turtle library module subprograms to control the window and Although Python does not require all arithmetic and logical/Boolean ...
Section One
The commands available in Python's turtle module are very easy to learn. The fantastic thing about this Python module is that there is nothing new to
Introduction to Programming in Python - Turtle Graphics
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DT Challenge Python - Turtle
Turtle Modules turtle is a Python module. It's an extra part of the Python language so we need to import its func ons by pu ng an import statement at the
Turtle Library
Mar 5 2019 Turtle is a python library that allows you to use drawing style graphics. ? Animations. ? It is important to remember that using this ...
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20 mar 2019 · en créant le module turtle de Python offre un vaste espace de jeu avec l'utilisation simple et élargie d'une interface graphique!
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Programmer en Python en 2nde Module turtle Le module graphique turtle permet de piloter un «crayon» afin de tracer dynamiquement des figures
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Formation Python - Le module turtle en Python - Yassine Ben Salah - Yassine Ben Ghriba
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Aide Mémoire Turtle "arrow" "turtle" "circle" Turtle utilise les noms des couleurs de Tk dont voici https://perso limsi fr/pointal/python:turtle
[PDF] Python 3 – Turtle graphics
Turtle graphics is now part of Python Some functions are part of Python's core libraries in The turtle module needs to be imported at the
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TURTLE sur Python Nouveau fichier ?Tortue?Créer from turtle import * import turtle as tortue ?cette commande n'est pas obligatoire Vocabulaire :
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La bibliothèque (ou module) turtle regroupe des fonctions permettant de créer des dessins en faisant bouger une tortue (ou plutôt une flèche) sur l'écran
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m a j : 20 janvier 2019 Module turtle pour introduire python Niveau : * Python est un langage de programmation dont la syntaxe est particulière-
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Le but de cette séance est de continuer à vous habituer à la programmation en Python et notamment aux notions de : — structures conditionnelles ;
turtle — Tortue graphique — Documentation Python 3113
Elle doit être utilisée quand le module turtle est utilisé de façon autonome pour dessiner Le singleton renvoyé ne peut hériter de sa classe Toutes les
Turn over S70460A
©2021 Pearson Education Ltd.1/1/1/1/
PLS Booklet
Do not return this booklet with the question paper.Computer Science
Programming Language Subset
Issue 3
Paper Reference 1CP2/02
Pearson Edexcel Level 1/Level 2 GCSE (9-1)
Specimen Assessment Material for first teaching
September 2020
2S70460AContents
Introduction
................................4Comments
...................................5Identifiers
.....................................5Data types and conversion
....5Primitive data types ...........................................................................................................................
...............................5Conversion
Constants
Combining declaration and initialisation ........................................................................
Structured data types............................................................................................................................
...........................5Dimensions
Operators
.....................................6 Arithmetic operators ........................................................................ ........6 Relational operators ........................................................................ ..........6 Logical/Boolean operators ........................................................................Programming constructs
............................7Assignment
Sequence
Blocking
.......7Selection
Repetition
Iteration
.......7Subprograms
Inputs and outputs
Screen and keyboard ............................................................................................................................
............................8 Files ...............8Supported subprograms
............................9 Built-in subprograms ........................................................................ ........9 List subprograms ........................................................................ ...............9 String subprograms ........................................................................ ........10 Formatting strings........................................................................ ....10 3Turn over S70460ALibrary modules ............................................................................................................................
Random library module ........................................................................Math library module ............................................................................................................................
...........................11Time library module ...........................................................................................................................
............................11Turtle graphics library module ........................................................................
Tips for using turtle ........................................................................Turtle window and drawing canvas ........................................................................
Turtle creation, visibility and movement ........................................................................
.................................13Turtle positioning and direction ........................................................................
Turtle filling shapes ........................................................................ .13 Turtle controlling the pen ........................................................................Turtle circles
...............14Turtle colours
.............14Console session
Code style
Line continuation
Carriage return and line feed
4S70460AIntroduction
The Programming Language Subset (PLS) is a document that specifies which parts of Python 3 are required in order that the assessments can be undertaken with confidence. Students familiar witheverything in this document will be able to access all parts of the Paper 2 assessment. This does not
stop a teacher/student from going beyond the scope of the PLS into techniques and approaches that they may consider to be more efficient or engaging.Pearson will
not go beyond the scope of the PLS when setting assessment tasks. Any student successfully using more esoteric or complex constructs or approaches not included in this document will still be awarded marks in Paper 2 if the solution is valid. 5Turn over S70460AThe pair of <> symbols indicate where expressions or values need to be supplied. They are not part
of the PLS.Comments
Anything on a line after the character # is considered a comment.Identifiers
Identifiers are any sequence of letters, digits and underscores, starting with a letter.Both upper and lower case are supported.
Data types and conversion
Primitive data types
Variables may be explicitly assigned a data type during declaration. Variables may be implicitly assigned a data type during initialisation.Supported data types are:
Data typePLS
integerint realfloatBooleanbool
characterstrConversion
Conversion is used to transform the data types of the contents of a variable using int(), str(), float(),
bool() or list(). Conversion between any allowable types is permitted.Constants
Constants are conventionally named in all uppercase characters.Combining declaration and initialisation
The data type of a variable is implied when a variable is assigned a value.Structured data types
A structured data type is a sequence of items, which themselves are typed. Sequences start with an index of zero.Data typeExplanationPLS
stringA sequence of charactersstr arrayA sequence of items with the same (homogeneous) data typelist recordA sequence of items, usually of mixed (heterogenous) data typeslistDimensions
The number of dimensions supported by the PLS is two.The PLS does not support ragged data structures. Therefore, in a list of records, each record will have
the same number of fields. 6S70460AOperators
Arithmetic operators
Arithmetic operatorMeaning
/division *multiplication **exponentiation +addition -subtraction //integer division %modulusRelational operators
Logical operatorMeaning
==equal to !=not equal to >greater than >=greater than or equal toOperatorMeaning
andboth sides of the test must be true to return true oreither side of the test must be true to return true notinverts 7Turn over S70460AProgramming constructs
Assignment
Assignment is used to set or change the value of a variable.Sequence
Every instruction comes one after the other, from the top of the file to the bottom of the file.Blocking
Blocking of code segments is indicated by indentation and subprogram calls. These determine the scope and extent of variables they declare.Selection
ifSupports multiple instances of 'elif'.
The 'else' is optional with the 'elif'.
Repetition
whileIteration
forS70460ASubprograms
defInputs and outputs
Screen and keyboard
print (Displays on the screen and
returns the line typed in Files The PLS supports manipulation of comma separated value text files. File operations include open, close, read, write and append. Reads every line, one at a time
Returns a list where each item is a line
from the fileReturns a line from a file. Returns an
empty string on the end of the fileOpens a file for writing
Opens a file for appending
Writes to a file. is
a list of strings Writes a single string to a file
Closes file
9Turn over S70460ASupported subprograms
Built-in subprograms
The PLS supports these built-in subprograms.
SubprogramDescription
chr (Returns the string which matches the Unicode
value ofDisplays the content of prompt to the screen
and waits for the user to type in characters followed by a new line len ([PDF] fractales python
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