Kurssisisältö
Introduction to Python(ihor)
Introduction to Python(ihor)
2. Variables and Types in Python
How to Store Numbers in PythonPython Naming Rules for VariablesHow to Work with Variables in PythonData Types in PythonChallenge: Converting Kilometers to MilesStore Text with Strings in PythonString Indexing in PythonString Slicing in PythonChallenge: Retrieving Letters from StringString Concatenation in Python
3. Conditional Statements in Python
Boolean Data Type in PythonChallenge: Working with Comparison OperatorsHow to Combine Conditions in PythonChallenge: Working with Logical OperatorsMembership Operators and Type Comparisons in PythonHow to Use if/else Expressions in PythonChallenge: Running a Grocery StoreChallenge: Creating Odd and Even Logicif/elif/else ExpressionsChallenge: Running Grocery Store ExtendedChallenge: Weather Adviser
4. Other Data Types in Python
Python ListsCommon List Methods in PythonChallenge: Updating ListNested Lists in PythonChallenge: Retrieving Information from Nested ListPython TuplesCommon Tuple Methods in PythonChallenge: Updating TupleNested Tuples in PythonChallenge: Retrieving Information from Nested TuplePython DictionariesChallenge: Creating DictionaryCommon Dictionary Methods in PythonChallenge: Updating Dictionary
6. Functions in Python
Built-in Functions in PythonChallenge: Converting HeightsHow to Create Functions in PythonChallenge: Writing First FunctionUse of if/else Statements in Python FunctionsChallenge: Identifying Positive Values Functions Without Return in PythonChallenge: Creating Logging FunctionModifying Functions in PythonChallenge: Updating Logic of the FunctionLambda Functions in PythonChallenge: Creating Lambda Function
String Slicing in Python
Sometimes you need to retrieve multiple elements from a text. This is where slicing comes in handy. Slicing allows us to access a range of elements without modifying the original sequence. To retrieve multiple characters at once, use square brackets ([]) and a colon (:) to specify the start and end indices.
The end position is always one more than the last character's index you want to include. In the example above, there are 10 positions, but the final index is 9.
# Initial strings platform_name = "codefinity" greeting_message = "How are you" # Slice strings to extract substrings # Spaces count as characters and have their own indices print(platform_name[0:4], platform_name[6:10]) print(greeting_message[2:5], greeting_message[6:11])
You are given the string "Python" stored in the language variable, extract the substrings "tho" and "on". The indices for this string are shown below.
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Osio 2. Luku 8
