Computer Science C.B.S.E syllabus
It is a sequence of immutable objects. It is just like list. Difference between the tuples and the lists is that the tuples cannot be changed unlike lists. Lists uses square bracket where as tuples use parentheses. Questions on Tuples
LIST An ordered collection of data items / elements Built in data structure in which individual element can be accessed using its position i.e. index value Represented using [] and elements are separated by comma Mutable data structure Index in the list starts from 0 for first element i.e. forward…
Dictionary Unordered collection of items / elements. Each item has two parts – key : value A mapping between key and it’s value, separated by colon (:) Items are enclosed in {} and separated by comma. Are optimized to retrieve data using key. So key (values) should be unique. They can be…
Loop Types There may be a situation, when you need to execute a block of code several times. In general, statements are executed sequentially: The first statement in a function is executed first, followed by the second, and so on. Programming languages provide various control structures that allow for more complicated execution paths. A loop…
Here you will get all videos on all class XI Python concepts from the beginning like from downloading to executing simple programs. How to install Python …
Meaning of Debugging Debugging means the process of finding errors, finding reasons for errors, and techniques of their fixation. An error, also known as a bug, is a programming code that prevents a program interpretation. Errors are of three types – Compile Time Error Run Time Error Logical Error Compile-time error : These errors are…
Data Type Data types are used to identify the type of data and set of valid operations that can be performed on it. Python has the following data types: Numbers( integer(whole no), floating(number with decimal) – String – List – Tuple – Dictionary
Conditional Statement – If… Else Conditional Statements (Decision Making) The basic decision statements in the computer are selection structure. The decision is described to computer as a conditional statement that can be answered True or False Python language provides the following conditional (decision making) statements. If statement If….. else statement If……elif…..else statement Nested if …….
