Python Exercise Lists

Python Numpy String Exercises

1. Write a Python Numpy program to repeat the words: Python, Numpy and Pandas two times..

The output is:

Original Array: ['Python', 'Numpy', 'Pandas']

Expected Answer:
New array: ['PythonPython' 'NumpyNumpy' 'PandasPandas']

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2. Write a Python Numpy program to switch the original array to Capital letter, lowercase and uppercase.

The output is:

Original Array: ['python', 'numpy', 'pandas']

Expected Answer:
New_capitalized: ['Python' 'Numpy' 'Pandas']
New_lower_case: ['python' 'numpy' 'pandas']
New_Upper_case: ['PYTHON' 'NUMPY' 'PANDAS']

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3. Write a Python Numpy program to print the string in the center, left-justified and right-justified with length 5 and 10.

The output is:

Original Array: ['python', 'numpy', 'pandas']

Expected Answer:
Center_5_width = ['pytho' 'numpy' 'panda']
Left_5_width = ['pytho' 'numpy' 'panda']
Right_5_width = ['pytho' 'numpy' 'panda']

Center_10_width = ['__python__' '__numpy___' '__pandas__']
Left_10_width = ['python____' 'numpy_____' 'pandas____']
Right_10_width = ['____python' '_____numpy' '____pandas']

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4. Write a Python Numpy program to combine two different string a1 and a2 into one phrase.

The output is:

a1 = 'Python'
a2 = ' Exercises'

Expected Answer:
new array: ['Python Exercises']

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5. Write a Python Numpy program to include a space in between of initial array.

The output is:

Initial Array = ['python', 'numpy', 'pandas']

Expected Answer:
New Array: ['p y t h o n' 'n u m p y' 'p a n d a s']

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6. Write a Python Numpy program to remove the whitespaces of the left side, whitespace of right side and all whitespaces between the initial array.

The output is:

Initial Array = [' python ', ' numpy ', ' pandas ', ' free ', ' exercises ']

Expected Answer:
Initial Array: [' python ' ' numpy ' ' pandas ' ' free ' ' exercises ']
Remove the left side whitespaces : ['python ' 'numpy ' 'pandas ' 'free ' 'exercises ']
Remove the right side whitespaces : [' python' ' numpy' ' pandas' ' free' ' exercises']
Remove the leading and trailing whitespaces: ['python' 'numpy' 'pandas' 'free' 'exercises']

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7. Write a Python Numpy program to separate the initial array into their respective words.

The output is:

Initial Array: [' python numpy pandas free exercises ']

Expected Answer:
Separate the element of the intiial array with spaces: [list(['python', 'numpy', 'pandas', 'free', 'exercises'])]

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8. Write a Python Numpy program to replace Numpy with Pandas in the initial array.

The output is:

Initial Array = ['Python', 'Numpy', 'Free', 'Exercises']

Expected Answer:
Initial Array: ['Python' 'Numpy' 'Free' 'Exercises']

New Array: ['Python' 'Pandas' 'Free' 'Exercises']

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9. Write a Python Numpy program to fill in zero in left side of words with total length of 10 space including the words.

The output is:

Initial Array = ['Python', 'Numpy', 'Free', 'Exercises']

Expected Answer:
Initial Array: ['Python' 'Numpy' 'Free' 'Exercises']

String of 10 digits with zeros: ['0000Python' '00000Numpy' '000000Free' '0Exercises']

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10. Write a Python Numpy program to the number of alphabet "e" in the initial array.

The output is:

Initial Array = ['Python', 'Numpy', 'Free', 'Exercises']

Expected Answer:
Initial Array: ['Python' 'Numpy' 'Free' 'Exercises']

Number of 'e': [0 0 2 2]

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More Exercises:

Python String Exercises
Python List Exercises
Python Library Exercises
Python Sets Exercises
Python Array Exercises
Python Condition Statement Exercises
Python Lambda Exercises
Python Function Exercises
Python File Input Output Exercises
Python Tkinter Exercises


More Numpy Exercises:

Numpy String Exercises
Numpy Integer Exercises
Numpy Array Exercises
Numpy Data Analysis Exercises
Numpy Data Sorting Exercises


More Pandas Exercises:

Pandas Series Exercises


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Python - Basic Variables
Python - Sequence Introduction
Python - Output Formatting
Python - Escape Character
Python - Type Conversion
Python - Numbers
Python – Arithmetic Operators
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Python – Logical Operators
Python – Precedence and Associativity Operators
Python – Bytes Type and Usage
Python – Long & Raw Strings
Python – Concatenate Function
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