Python CSV File Reading and Writing - Exercises, Practice, Solution
Python CSV File Reading and Writing [11 exercises with solution]
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1. Write a Python program to read each row from a given csv file and print a list of strings.
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2. Write a Python program to read a given CSV file having tab delimiter.
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3. Write a Python program to read a given CSV file as a list.
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4. Write a Python program to read a given CSV file as a dictionary.
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5. Write a Python program to read a given CSV files with initial spaces after a delimiter and remove those initial spaces.
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6. Write a Python program that reads a CSV file and remove initial spaces, quotes around each entry and the delimiter.
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7. Write a Python program to read specific columns of a given CSV file and print the content of the columns.
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8. Write a Python program that reads each row of a given csv file and skip the header of the file. Also print the number of rows and the field names.
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9. Write a Python program to create an object for writing and iterate over the rows to print the values.
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10. Write a Python program to write a Python list of lists to a csv file. After writing the CSV file read the CSV file and display the content.
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11. Write a Python program to write a Python dictionary to a csv file. After writing the CSV file read the CSV file and display the content.
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Python: Tips of the Day
Inverts a dictionary with non-unique hashable values:
Example:
def tips_collect_dictionary(obj): inv_obj = {} for key, value in obj.items(): inv_obj.setdefault(value, list()).append(key) return inv_obj ages = { "Owen": 25, "Jhon": 25, "Pepe": 15, } print(tips_collect_dictionary(ages))
Output:
{25: ['Owen', 'Jhon'], 15: ['Pepe']}
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