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Python Articles
Page 843 of 854
Print Colors of terminal in Python
In the terminal, if you want to make some texts appears in colored mode, there are numerous ways in python programming to achieve it.Using python modules1.termcolor module: It is the ANSII Color formatting for output in the terminal.import sys from termcolor import colored, cprint text1 = colored('Hello, Tutorialspoint!', 'blue', attrs=['reverse', 'blink']) print(text1) cprint('Hello, Python!', 'blue', 'on_white') print_red_on_blue = lambda x: cprint(x, 'red', 'on_blue') print_red_on_blue('Hello, from Data Science!') print_red_on_blue('Hello, Python!') for i in range(10): cprint(i, 'green', end=' ') cprint("Attention!", 'blue', attrs=['bold'], file=sys.stderr)Result
Read MoreHow to generate byte code file in python
All python program automatically compiles your source code to compile code also called as byte code, before executing it.Whenever we import a module for the first time or when your source file is a new file or we have an updated file then the recently compiled file, a .pyc file will be created on compiling the file in the same directory as the .py file (from python 3- you might see .pyc file is in a subdirectory called __pycache__ instead in the same directory as your .py file). This is a time-saver mechanism as it prevents python to skip the ...
Read MoreWhy is python best suited for Competitive Coding
Competitive programming is generally referred to coding to make use of efficient algorithms using an appropriate data structure. They test the skills of programmers on many levels.With the help of algorithms and data structures, you have to solve a hypothetical programming problem posed to you by applying different logics. You not only have to solve the problem but you have to come up with a very efficient solution, which is having a good time and space complexity.Example of a problem statement for what is called competitive programming might be −You are given a string s of length n consisting only ...
Read MoreReplacing strings with numbers in Python for Data Analysis
Sometimes there is a requirement to convert a string to a number (int/float) in data analysis. For each string, we can assign a unique integer value to differentiate string values.For this, we use the data in Comma Separated Values(CSV) files. Say we have an excel file containing CSV data as follow −CompanyIndustryRecommendationHDFC BankFinanceHoldApolloHealthcareBuyHeroAutomobileUnderperformYes BankFinanceHoldM&MAutomobileUnderperformFortisHealthcareBuyMarutiAutomobileUnderperformAbove is just a few lines from a large dataset, we need to give different recommendation .i.e. Buy, Hold, Underperform etc. integer values, which will link to our metadata. So for the above input, our expected output will be something like −CompanyIndustryRecommendationHDFC BankFinance2ApolloHealthcare1HeroAutomobile3Yes BankFinance2M&MAutomobile3FortisHealthcare1MarutiAutomobile3Here is a way ...
Read MoreDesign a Keylogger in Python
Here we are going to develop a keylogger using python. But before that, what is a keylogger? Keylogger is a program with which we monitor keystrokes. These keystrokes will be stored in a log file. We can record sensitive information like username and password using this keystroke.To create a keylogger we are going to use the pynput module. As its not the standard library of python, we might need to install it.Installing pyxhook module −I’m going to use pip to install pynput −pip install pynput Requirement already satisfied: pynput in c:\python\python361\lib\site-packages (1.4) Requirement already satisfied: six in c:\python\python361\lib\site-packages (from pynput) ...
Read MorePython library PyTube to download youtube videos
You know “youtube” right? Yes that most famous video sharing website especially in india . Most of the time, you like some videos and you try to download that video so as to check it later/offline. Then you come across “youtube-downloader” app to download youtube videos from the youtube website. But most of the apps comes with some restriction (if you are using it for free) or cost you money. But have you ever think of creating our own program to download youtube videos? If not you, then you should try as its very simply to do using the python ...
Read MoreSocket Programming with Multi-threading in Python?
Multithreading ConceptsMultithreading is the core concept of nearly all modern programming languages especially python because of its simplistic implementation of threads.A thread is a sub-program within a program that can be executed independently of other section of the code. A thread executes in the same context sharing program’s runnable resources like memory.When in a single process, we are executing multiple threads simultaneously, it is called multithreading.Python Multithreading Modules for a thread implementationTo implements threads in programs, python provides two modules −thread (for python 2.x) or _thread(for python 3.x) modulethreading moduleWhere the thread module creates a thread as a function whereas ...
Read MorePython program to check if there are K consecutive 1’s in a binary number?
First we take a user input string with the combination of 1’s and 0’s.then create a new string with 1’s, then check if there is any p number of consecutive 1’s is present or not. If present then display FOUND otherwise NOTFOUND. Example Binary number ::1111001111 Enter consecutive 1’s :3 Consecutive 1's is Found Algorithm Step 1: input a string with the combination of 1’s, it’s stored in the variable X and 0’s and p is the consecutive 1’s in a binary number. Step 2: form a new string of p 1’s. newstring=”1”*p Step ...
Read MorePython program to check the validity of a Password?
Here given a password, our task is to check that this Password is valid or not. Here we use re module that provide regular expression and re.search() is used for checking the validation of alphabets, digits or special characters. Algorithm Step 1: first we take an alphanumeric string as a password. Step 2: first check that this string should minimum 8 characters. Step 3: the alphabets must be between a-z. Step 4: At least one alphabet should be in Uppercase A-Z. Step 5: At least 1 number or digit between 0-9. Step 6: At least 1 character from [_ ...
Read MorePython program to extract ‘k’ bits from a given position?
This function is use to extract k bits from pos position and returns the extracted value. Here we use python slicing technique. Example Input:: number=170 K=5 Pos=2 Output=21 Algorithm Extractionbit(no, k, pos) /*user input number is stored in variable no, extracted bit is stored in variable k and the position of bit is pos. */ Step 1 : first convert the number into its binary form using bin(). Step 2 : remove the first two character. Step 3 : then extracting k bits from starting ...
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