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Class 12 CS Chapter 4 Using Python Libraries Solutions Sumita Arora New Syllabus

/ Uncategorized / By Neha

Ex 4.1 Solutions

1. Which operator is used in Python to import all modules from packages?

(b) * ...

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2. Which file must be part of the folder containing Python module files to make it importable python package?

(c) __init__.py ...

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3. In python which is the correct method to load a module math?

(b) import ...

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4. Which is the correct command to load just the tempc method from a module called usable?

(c) from ...

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5. What is the extension of Python library modules?

(d) .py ...

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Back Exercise Part A

3. What is a package ? How is a package different from module ?

...

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4. What is a library ? Write procedure to create own library in Python.

...

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5. What is the use of file __init__.py in a package even when it is empty ?

...

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6. What is the importance of site-packages folder of Python installation ?

...

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7. How are following import statements different ?

...

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8. What is PYTHON PATH variable ? What is its significance ?

...

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9. In which order Python looks for the function/module names used by you.

...

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10. What is the usage of help( ) and dir( ) functions.

...

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13. Why should the from import statement be avoided to import objects ?

...

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14. What do you understand by standard library of Python ?

...

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15. Explain the difference between import and from import statements, with examples.

...

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Back Exercise Part B

1. Create module tempConversion.py as given in Fig. 8.2 in the chapter. If you invoke the module with two different types of import statements, how would the function call statement for imported module’s functions be affected ?

# tempConversion.py ...

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2. A function checkMain( ) defined in module Allchecks.py is being used in two different programs. In program 1 as

In program ...

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3. Given below is semi-complete code of a module basic.py :

...

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6. Suppose that after .we import the random module, we define the following function called diff in a Python session :

...

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5. Import the above module basics.py and write statements for the following :

...

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4. After importing the above module, some of its functions are executed as per following statements. Find errors, if any :

...

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7. What are the possible outcome(s) executed from the following code ? Also specify the maximum and minimum values that can be assigned to variable NUMBER.

...

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8. Consider the following code :

...

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9. Consider the following code :

...

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10. Consider the following package

...

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11. What are the possible outcome(s) executed from the following code ? Also specify the maximum and minimum values that can be assigned to variable PICKER.

...

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Back Exercise Part C

2. Create a module MassConversion.py that stores function for mass conversion e.g.,

help(MassConversion) displays ...

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1. Create a module lengthconversion.py that stores functions for various lengths conversion e.g.,

help(lengthconversion) displays ...

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3. Create a package from above two modules as this :

...

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We teach following classes
- Class 12
- Class 11
- Class 10
- Class 9
Sumita Arora IP/CS Solutions
Jobs/Internship

We teach following classes
Sumita Arora IP/CS Solutions
Jobs/Internship

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