Python Articles - Page 988 of 1048

To measure time of a program's execution, either use time.clock() or time.time() functions. The python docs state that this function should be used for benchmarking purposes. exampleimport time t0= time.clock() print("Hello") t1 = time.clock() - t0 print("Time elapsed: ", t1 - t0) # CPU seconds elapsed (floating point)OutputThis will give the output −Time elapsed:  0.0009403145040156798You can also use the timeit module to get proper statistical analysis of a code snippet's execution time.  It runs the snippet multiple times and then it tells you how long the shortest run took. You can use it as follows:Exampledef f(x):   return x * x ... Read More

To find out if 24 hrs have passed between datetimes in Python, you will need to do some date math in Python. So if you have 2 datetime objects, you'll have to subtract them and then take the timedelta object you get as a result and use if for comparision. You can't directly compare it to int, so you'll need to first extract the seconds from it. examplefrom datetime import datetime NUMBER_OF_SECONDS = 86400 # seconds in 24 hours first = datetime(2017, 10, 10) second = datetime(2017, 10, 12) if (first - second).total_seconds() > NUMBER_OF_SECONDS:   print("its been over a day!")OutputThis ... Read More

Python provides different ways to find the execution time taken by a script or specific parts of the code such as using the functions from the time module, like time.time() or time.clock(). The following are some common methods used to measure execution time in Python: Using time.time() Function Using time.process_time() Function Using timeit Module Getting Program Execution Time Using time.time() Function The time.time() function returns the current time as a floating-point number that indicates the seconds elapsed since the epoch (when time began). To calculate the execution time ... Read More

Python provides various modules, such as time, datetime, and timeit, to measure time with high accuracy. These modules offer high-resolution clocks to measure time intervals. The following are several methods used to measure time with high precision in Python. Using time.time() Method Using time.perf_counter() Function Using timeit.default_timer() Using time.time() Method for Simple Timing The time.time() method returns the current time in seconds since the epoch as a floating-point number. The epoch is system-dependent, but on Unix-like systems, it is typically January 1, 1970, 00:00:00 (UTC). ... Read More

Python's datetime module is used to extract various components of the current date and time, such as minutes, seconds, and even milliseconds. The datetime.now() method defined in the datetime module returns the current local date and time as a datetime object. This object allows us to access its individual components like minute, second, and millisecond. Using Attributes of datetime.now() to Extract Values Here we use the datetime.now() method to get the current minutes, seconds, and milliseconds. The now() function is defined under the datetime module. And retrieve the current minutes, seconds, and milliseconds by using .minute, .second, and .microsecond, respectively. ... Read More

We can retrieve the current time in milliseconds using different Python built-in modules like time, datetime, and calendar. These modules provide functions to work with time and dates. Each method gives us the time in a different format, but with a little calculation, we can convert it to milliseconds. The following are several methods used to achieve this. Using time.time() Method Using the datetime Module Using calendar.timegm() with datetime Using time.time() Method The time module in Python provides various methods and functions related to time. Here ... Read More

We can use the PyMongo library (the official Mongodb driver for Python) to connect to a Mongodb database and use it to insert, update, delete, etc objects. To include date and time information, Mongodb supports ISODate format, and PyMongo provides direct support for Python's datetime.datetime objects. There are multiple ways to prepare a Python date object for insertion into MongoDB, which we will discuss here: Create and Insert Date Object to MongoDB Using datetime.datetime.utcnow() The simplest way to create a Python date object that can be inserted into MongoDB is by using datetime.datetime.utcnow() from the datetime module. You can use ... Read More

You can use the fromtimestamp() function from the datetime module to get a date from a UNIX timestamp. This function takes the timestamp as input and returns the datetime object corresponding to the timestamp.  Exmaple import datetime timestamp = datetime.datetime.fromtimestamp(1500000000) print(timestamp.strftime('%Y-%m-%d %H:%M:%S'))OutputThis will give the output −2017-07-14 08:10:00

The Python datetime module provides various ways for manipulating dates and times. One of its key features is the timedelta object, which represents duration and also the difference between two dates or times. Subtracting a specific amount of time from a date can be done using timedelta. For example, if we want to find the date a day before today, then we create a timedelta object with days=1 and then subtract it from the current date. Subtracting One Day from Today's Date Using timedelta The basic use case is subtracting a single day from today's date. This can be done ... Read More

While working with databases like MySQL, it’s necessary to store dates in a numeric format, especially for timestamps. MySQL commonly uses Unix timestamps, which are 10-digit numbers representing the number of seconds since January 1, 1970 (known as the epoch). The following are the different methods from the time and datetime modules to convert Python date formats into a 10-digit format (Unix timestamp) suitable for use with MySQL. Using mktime() Method Using strptime() + mktime() Combination Using timestamp() Method Using mktime() Method The mktime() method from ... Read More