Python time Elapsed or Estimate the time passed

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Elapsed time

Elapsed time refers to the amount of time that has passed between two events. It is the difference between the start time and the end time of an event or process. The elapsed time can be calculated in seconds, minutes, hours, or any other unit of time. The purpose of measuring elapsed time is to understand how long a specific event took to complete or how much time has passed between two points in time. The elapsed time can be useful for performance analysis, optimization, and troubleshooting.

Measure ‘elapsed time’ in Python

To measure elapsed time in Python, you can use the ‘time‘ module which provides several functions for working with time.

  1. time.time()‘ returns the current time in seconds since the epoch (the point in time at which time begins). You can use this to calculate the elapsed time by subtracting the start time from the end time.

Example:

Python
import time

start_time = time.time()
# perform some operations here
end_time = time.time()
elapsed_time = end_time - start_time
print("Elapsed time: ", elapsed_time)
  1. time.perf_counter()‘ returns the value (in seconds) of a performance counter, which is a platform-specific high-resolution timer. You can use this to calculate the elapsed time similarly to the ‘time.time()‘ method.

Example:

Python
import time

start_time = time.perf_counter()
# perform some operations here
end_time = time.perf_counter()
elapsed_time = end_time - start_time
print("Elapsed time: ", elapsed_time)

Note: The ‘time.perf_counter()‘ function is recommended for timing operations in Python 3, as it provides a higher resolution timer compared to ‘time.time()‘.

Find ‘current time’

In Python, you can get the current date and time using the ‘datetime‘ module.

Here’s an example:

Python
import datetime

current_time = datetime.datetime.now()

print("Current date and time: ")
print(current_time)

In this example, the ‘datetime‘ module is imported. The ‘now()‘ method is called on the ‘datetime‘ class to get the current date and time. The ‘current_time‘ variable holds the current date and time as a ‘datetime‘ object.

The print() function is then used to display the current date and time in the console.

When you run this code, you’ll see the current date and time displayed in the console, like this:

Current date and time:
2023-02-16 12:00:00.000000

Note that the date and time displayed will depend on your system’s clock settings.

Perform for Debugging with Elapsed Time

To perform debugging with elapsed time in Python, you can use the time module to measure the execution time of different parts of your code. Here’s a simple example that demonstrates how to use the ‘time‘ module to measure the elapsed time of a piece of code:

Python
import time

start_time = time.time()

# Put your code here that you want to measure

end_time = time.time()

elapsed_time = end_time - start_time

print(f"Elapsed time: {elapsed_time} seconds")

In this example, we first import the ‘time‘ module. Then, we use the ‘time.time()‘ function to record the start time of the code block we want to measure. After running the code block, we record the end time using the same function. The ‘elapsed_time‘ variable is calculated by subtracting the start time from the end time. Finally, we print the elapsed time in seconds using an f-string.

You can place this code block around different parts of your code that you want to measure the execution time of, and then use the printed elapsed time to identify which part of your code may be causing performance issues.

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