How to parse an HTTP date-string in Python?

How to parse an HTTP date-string in Python?

To parse an HTTP date-string in Python, you can use the dateutil.parser module from the python-dateutil library or the datetime module from the Python standard library, depending on your preference and requirements.

Using dateutil.parser (recommended):

The dateutil.parser module is part of the python-dateutil library, which provides more flexible date and time parsing capabilities compared to the datetime module. To parse an HTTP date-string, you can follow these steps:

  1. Install python-dateutil if you haven't already:

    pip install python-dateutil

  2. Use dateutil.parser.parse() to parse the HTTP date-string:

    from dateutil import parser http_date_string = "Tue, 21 Dec 2021 16:01:07 GMT" parsed_date = parser.parse(http_date_string) print(parsed_date)

Using datetime from the Python Standard Library:

You can also use the datetime module from the Python standard library to parse HTTP date-strings. However, this method is less forgiving than dateutil.parser and may require you to specify the format explicitly.

Here's an example:

from datetime import datetime http_date_string = "Tue, 21 Dec 2021 16:01:07 GMT" # Define the format expected in the HTTP date-string http_date_format = "%a, %d %b %Y %H:%M:%S %Z" # Parse the HTTP date-string using strptime() parsed_date = datetime.strptime(http_date_string, http_date_format) print(parsed_date)

Using dateutil.parser is recommended because it can handle various date and time formats more flexibly, making it more suitable for parsing HTTP date-strings where the format may vary. However, if you know the exact format of the HTTP date-string you're working with, using datetime.strptime() can also be a viable option.

Examples

  1. "Python parse HTTP date string to datetime object"

    • Description: This query seeks a method to parse an HTTP date string into a datetime object in Python.
    • Code:
      from datetime import datetime import email.utils # HTTP date string to parse http_date_string = "Wed, 09 Apr 2024 12:34:56 GMT" # Parse HTTP date string to datetime object parsed_date = email.utils.parsedate_to_datetime(http_date_string) # Print parsed datetime object print(parsed_date)

  2. "Python convert HTTP date string to timestamp"

    • Description: This query focuses on converting an HTTP date string to a Unix timestamp in Python.
    • Code:
      from datetime import datetime import email.utils # HTTP date string to parse http_date_string = "Wed, 09 Apr 2024 12:34:56 GMT" # Parse HTTP date string to datetime object parsed_date = email.utils.parsedate_to_datetime(http_date_string) # Convert datetime object to Unix timestamp unix_timestamp = int(parsed_date.timestamp()) # Print Unix timestamp print(unix_timestamp)

  3. "Python parse RFC 2822 date string from HTTP header"

    • Description: This query aims to parse an RFC 2822 date string extracted from an HTTP header in Python.
    • Code:
      from datetime import datetime import email.utils # HTTP date string from header http_date_string = "Wed, 09 Apr 2024 12:34:56 GMT" # Parse RFC 2822 date string to datetime object parsed_date = email.utils.parsedate_to_datetime(http_date_string) # Print parsed datetime object print(parsed_date)

  4. "Python parse HTTP date string to UTC timezone"

    • Description: This query seeks a method to parse an HTTP date string into a datetime object in UTC timezone using Python.
    • Code:
      from datetime import datetime, timezone import email.utils # HTTP date string to parse http_date_string = "Wed, 09 Apr 2024 12:34:56 GMT" # Parse HTTP date string to datetime object in UTC timezone parsed_date = email.utils.parsedate_to_datetime(http_date_string).replace(tzinfo=timezone.utc) # Print parsed datetime object print(parsed_date)

  5. "Python parse HTTP date string to local timezone"

    • Description: This query focuses on parsing an HTTP date string into a datetime object in the local timezone using Python.
    • Code:
      from datetime import datetime import email.utils # HTTP date string to parse http_date_string = "Wed, 09 Apr 2024 12:34:56 GMT" # Parse HTTP date string to datetime object in local timezone parsed_date = email.utils.parsedate_to_datetime(http_date_string).astimezone() # Print parsed datetime object print(parsed_date)

  6. "Python convert HTTP date string to ISO 8601 format"

    • Description: This query aims to convert an HTTP date string to the ISO 8601 date-time format using Python.
    • Code:
      from datetime import datetime import email.utils # HTTP date string to parse http_date_string = "Wed, 09 Apr 2024 12:34:56 GMT" # Parse HTTP date string to datetime object parsed_date = email.utils.parsedate_to_datetime(http_date_string) # Convert datetime object to ISO 8601 format iso_format = parsed_date.isoformat() # Print ISO 8601 formatted date-time print(iso_format)

  7. "Python parse HTTP date string with microseconds"

    • Description: This query seeks a method to parse an HTTP date string that includes microseconds into a datetime object in Python.
    • Code:
      from datetime import datetime import email.utils # HTTP date string with microseconds http_date_string = "Wed, 09 Apr 2024 12:34:56.123456 GMT" # Parse HTTP date string to datetime object parsed_date = email.utils.parsedate_to_datetime(http_date_string) # Print parsed datetime object print(parsed_date)

  8. "Python parse HTTP date string without time zone"

    • Description: This query focuses on parsing an HTTP date string that lacks a timezone indication into a datetime object in Python.
    • Code:
      from datetime import datetime import email.utils # HTTP date string without timezone http_date_string = "Wed, 09 Apr 2024 12:34:56" # Parse HTTP date string to datetime object parsed_date = email.utils.parsedate_to_datetime(http_date_string) # Print parsed datetime object print(parsed_date)

  9. "Python parse HTTP date string with GMT offset"

    • Description: This query aims to parse an HTTP date string that includes a GMT offset into a datetime object in Python.
    • Code:
      from datetime import datetime, timezone import email.utils # HTTP date string with GMT offset http_date_string = "Wed, 09 Apr 2024 12:34:56 +0530" # Parse HTTP date string to datetime object parsed_date = email.utils.parsedate_to_datetime(http_date_string) # Convert parsed date to UTC timezone utc_date = parsed_date.astimezone(timezone.utc) # Print parsed datetime object in UTC timezone print(utc_date)

  10. "Python extract date and time from HTTP date string"

    • Description: This query seeks to extract the date and time components from an HTTP date string in Python.
    • Code:
      from datetime import datetime import email.utils # HTTP date string to parse http_date_string = "Wed, 09 Apr 2024 12:34:56 GMT" # Parse HTTP date string to datetime object parsed_date = email.utils.parsedate_to_datetime(http_date_string) # Extract date and time components date = parsed_date.date() time = parsed_date.time() # Print extracted date and time print("Date:", date) print("Time:", time)

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