Add uuid to a new column in a pandas DataFrame

Add uuid to a new column in a pandas DataFrame

You can easily add a new column with UUIDs to a pandas DataFrame using the uuid module. First, you need to generate the UUIDs and then assign them to the new column. Here's how you can do it:

import pandas as pd import uuid # Create a sample DataFrame data = {'Name': ['Alice', 'Bob', 'Charlie']} df = pd.DataFrame(data) # Generate UUIDs and add them to a new column df['UUID'] = [uuid.uuid4() for _ in range(len(df))] print(df)

In this example, we're creating a new column called 'UUID' in the DataFrame df and filling it with UUIDs generated using uuid.uuid4().

The output might look like this:

 Name UUID 0 Alice 6fa811f2-9b6e-4e9f-b019-9e8871a146f5 1 Bob a3441990-1c2e-49d1-9ec0-2c2537a0de0f 2 Charlie 10d3ec6b-6e2b-477e-89b3-4e4fcba5b14e

Remember that each time you run the code to generate UUIDs, you'll get new unique values. If you need to maintain the same UUIDs across runs, you should store them somewhere (e.g., in a file or database) and load them when needed.

Examples

  1. How to generate and add UUID to a new column in a pandas DataFrame?

    • Description: Learn how to generate UUIDs and add them to a new column in a pandas DataFrame.
    • Code:
      import pandas as pd import uuid # Create a pandas DataFrame df = pd.DataFrame({'A': [1, 2, 3, 4, 5]}) # Add UUIDs to a new column df['UUID'] = [uuid.uuid4() for _ in range(len(df))] print(df)

  2. Adding UUID to a pandas DataFrame column efficiently

    • Description: Efficiently add UUIDs to a new column in a pandas DataFrame using list comprehension.
    • Code:
      import pandas as pd import uuid # Create a pandas DataFrame df = pd.DataFrame({'A': [1, 2, 3, 4, 5]}) # Add UUIDs to a new column df['UUID'] = [uuid.uuid4() for _ in range(len(df))] print(df)

  3. How to insert UUIDs into a pandas DataFrame as a new column?

    • Description: Insert UUIDs into a pandas DataFrame as a new column to uniquely identify each row.
    • Code:
      import pandas as pd import uuid # Create a pandas DataFrame df = pd.DataFrame({'A': [1, 2, 3, 4, 5]}) # Add UUIDs to a new column df['UUID'] = df.apply(lambda _: uuid.uuid4(), axis=1) print(df)

  4. Python pandas: Generate UUIDs and append to DataFrame

    • Description: Generate UUIDs and append them to a pandas DataFrame as a new column.
    • Code:
      import pandas as pd import uuid # Create a pandas DataFrame df = pd.DataFrame({'A': [1, 2, 3, 4, 5]}) # Add UUIDs to a new column df['UUID'] = df.apply(lambda _: uuid.uuid4(), axis=1) print(df)

  5. How to create a new column of UUIDs in pandas DataFrame?

    • Description: Create a new column of UUIDs in a pandas DataFrame for unique identification purposes.
    • Code:
      import pandas as pd import uuid # Create a pandas DataFrame df = pd.DataFrame({'A': [1, 2, 3, 4, 5]}) # Add UUIDs to a new column df['UUID'] = [uuid.uuid4() for _ in range(len(df))] print(df)

  6. Python pandas: Efficient way to add UUIDs to DataFrame column

    • Description: Use an efficient method to add UUIDs to a new column in a pandas DataFrame for improved performance.
    • Code:
      import pandas as pd import uuid # Create a pandas DataFrame df = pd.DataFrame({'A': [1, 2, 3, 4, 5]}) # Add UUIDs to a new column df['UUID'] = [uuid.uuid4() for _ in range(len(df))] print(df)

  7. How to populate a pandas DataFrame column with UUIDs?

    • Description: Populate a pandas DataFrame column with UUIDs to uniquely identify each row in the DataFrame.
    • Code:
      import pandas as pd import uuid # Create a pandas DataFrame df = pd.DataFrame({'A': [1, 2, 3, 4, 5]}) # Add UUIDs to a new column df['UUID'] = [uuid.uuid4() for _ in range(len(df))] print(df)

  8. Python pandas: Add UUIDs as a new column in DataFrame

    • Description: Add UUIDs as a new column in a pandas DataFrame to provide a unique identifier for each row.
    • Code:
      import pandas as pd import uuid # Create a pandas DataFrame df = pd.DataFrame({'A': [1, 2, 3, 4, 5]}) # Add UUIDs to a new column df['UUID'] = [uuid.uuid4() for _ in range(len(df))] print(df)

  9. Adding UUIDs to pandas DataFrame column with Python

    • Description: Use Python to add UUIDs to a new column in a pandas DataFrame for unique identification.
    • Code:
      import pandas as pd import uuid # Create a pandas DataFrame df = pd.DataFrame({'A': [1, 2, 3, 4, 5]}) # Add UUIDs to a new column df['UUID'] = [uuid.uuid4() for _ in range(len(df))] print(df)

  10. How to create a new column of UUIDs in pandas DataFrame efficiently?

    • Description: Efficiently create a new column of UUIDs in a pandas DataFrame for better performance.
    • Code:
      import pandas as pd import uuid # Create a pandas DataFrame df = pd.DataFrame({'A': [1, 2, 3, 4, 5]}) # Add UUIDs to a new column df['UUID'] = [uuid.uuid4() for _ in range(len(df))] print(df)

More Tags

scalac plc asp.net-web-api spring-amqp pickle telegram-bot uipopover placeholder logback django-templates

More Python Questions

More Entertainment Anecdotes Calculators

More Everyday Utility Calculators

More Mixtures and solutions Calculators

More Date and Time Calculators