python list interview questions

What are the key features of Python? Python is a widely-used general-purpose, high-level programming language. Syntax: D.replace(‘/’,’’). # ‘groovy’. If the function given takes in more than 1 arguments, then many iterables are given. Stay tune we will update New Python Interview questions with Answers Frequently. Data Analysis – Python Interview Questions Q85. The training comes with 24*7 support to guide you throughout your learning period. ['Flying', 'Keep', 'Blue', 'High', 'The', 'Flag']. List of frequently asked Python Interview Questions with answers by Besant Technologies. Q7. Don't let the Lockdown slow you Down - Enroll Now and Get 3 Course at 25,000/- Only. This is nice from a security perspective. A list of top frequently asked Python Pandas Interview Questions and answers are given below. 1) What is Python? class shark: Being popular, most of the freshers tend towards the language. Also your floor operator details are incorrect. For displaying the defined symbols, make use pf the dir() function. It defines one-to-one relationship between keys and values. o.some_property How do we create numerical variables in python? It is not possible to de-allocate the memory that is reserved by the C library. Here’s a simple example of a counter: class Counter: def __init__(self, low, high): self.current = low self.high = high def __iter__(self): return self def next(self): # Python 3: def __next__(self) if self.current > self.high: raise StopIteration else: self.current += 1 return self.current – 1 for c in Counter(3, 8): print c This will print: 3 4 5 6 7 8, You could except the ImportError exception: try: from Pyside2 import QtCore, QtGui except ImportError: from PySide import QtCore, QtGui Alternatively, you can use the importlib module: import importlib import sys PySide = importlib.import_module(‘Pyside2’ if ‘Pyside2’ in sys.modules else ‘PySide’). Class Base: numOfInstances = 0 def __init__(self): Base.numOfInstances += 1 def getNumInstances(): print Base.numOfInstances getNumInstances = staticmethod(getNumInstances) class Derived(Base): def __init__(self): Base.__init__(self) b1 = Base() d1 = Derived() d2 = Derived() d1.getNumInstances() #It should print 3 Base.getNumInstances() #It should print 3, class Base: numOfInstances = 0 def countInstances(cls): cls.numOfInstances += 1 countInstances = classmethod(countInstances) def getNumInstances(cls): print cls.numOfInstances getNumInstances = classmethod(getNumInstances) def __init__(self): self.countInstances() class Derived(Base): numOfInstances = 0 def __init__(self): Base.__init__() b1 = Base() b2 = Base() d1 = Derived() d2 = Derived() d3 = Derived() b1.getNumInstances() Base.getNumInstances() #Both should print 2 d1.getNumInstances() Derived.getNumInstances() #Both should print 3, Q21. Inheritance provides code reusability, makes it easier to create and maintain an application. # class methods always get the class ‘cls’ as the first argument Ans: Type conversion refers to the conversion of one data type iinto another. How to Display Fibonacci Series in Python? Eg: import os; os.path.isfile(‘/home/abc’). Dwelling into Python for many years and analyzing the trends in thus domain very closely; I’m writing this post to share with you all the interview questions which will help you throughout your career. class Base: numOfInstances = 0 def __init__(self): Base.numOfInstances += 1 def getNumInstances(): print Base.numOfInstances # Using python built-in staticmethod, @decoration symbol also can be used getNumInstances = staticmethod(getNumInstances) b1 = Base() b1.getNumInstances() # It should print 1 b2 = Base() b2.numOfInstances = 15 b1.getNumInstances() # It should print 2 b2.getNumInstances() #It should print 2, Let’s extend the Base class and see what happens –, class Base: numOfInstances = 0 def __init__(self): Base.numOfInstances += 1 def getNumInstances(): print Base.numOfInstances # Using python built-in staticmethod,@decoration symbol also can be used getNumInstances =staticmethod(getNumInstances) class Derived(Base): numOfInstances = 0 def __init__(self): Derived.numOfInstances +=1 b1 = Base() d1 = Derived() d2 = Derived() d1.getNumInstances() #It’s printing 1 But we have created 2 instances of Derived Derived.getNumInstances() #It’s printing 1 But we have created 2 instances of Derived, class Base: numOfInstances = 0 def __init__(self): Base.numOfInstances += 1 def getNumInstances(): print Base.numOfInstances getNumInstances = staticmethod(getNumInstances) class Derived(Base): def __init__(self): Base.__init__(self) b1 = Base() d1 = Derived() d2 = Derived() d1.getNumInstances() #It should print 3 Base.getNumInstances() #It should print 3, class Base: numOfInstances = 0 def countInstances(cls): cls.numOfInstances += 1 countInstances = classmethod(countInstances) def getNumInstances(cls): print cls.numOfInstances getNumInstances = classmethod(getNumInstances) def __init__(self): self.countInstances() class Derived(Base): numOfInstances = 0 def __init__(self): Base.__init__() # Why we call explicitly to super class’s __init__ ?? data = pd.series{‘A’:[1,2], ‘B’:[3,4]} Data Scientist Salary In India For Freshers & Experienced, AWS Salary In India For Freshers & Experienced, Selenium Tester Salaries In India For Freshers & Experienced, AWS Training Course for Solutions Architect, Microsoft Certified Azure Data Scientist Associate Training, use of with – supported from python 2.5 and above, use of yield if you really want to have control over how much to read.

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