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Some basics of Python Programming Language for absolute beginners

Posted on: 2017-06-28

In 2015, According to investigation with more than 40 thousand developers, Python has introduced as one of the most prevalent coding language. As Python became developer’s favorite languages, it covers all existing languages such as C++, Java, Ruby and many more.Career in this field also grows accordingly. Most of the jobs require Python skills and this requirement is always at the top. So this is a time to discover career opportunities in Python.

Mindcreature  provides you an Environment to make your career in Python and sharp your skills according to industry requirement.We give an overview of a list of questions and their relevant answers to help you to get your dream job in the upcoming years.

What is Python?

As defined by Wikipedia Python is a “high-level programming, an extensively utilized general-purposelanguage”. Python is a programming languagewith threads, objects,exceptions, automatic management of memory and modules. Python encompasses a huge number of benefits such as extensibility, simplicity, availability of built-in data structures,ease of useand portability.

How is Python interpreted?    

A Python programis directly run from source code that is why it is an interpreted language. Before executing, the source code is converted into an intermediate languagewhich is furthertranslated into machine language.

What is “PEP 8”?

“PEP 8” is used as a coding convention to make Python code more readable.

 What is the procedureto handle memory in Python?

A term “private heap space” is used to manage Python memory. This “private heap” holds all the objects and data structures of Python.

Apart from this “garbage collector” is utilized to recycles all unused memory.

Define “Pickling” and “Unpickling”.

With the help of “Pickle” module, a Python object is converted into a string representationwhich is further dumped into thefile with the help of the “dump” function. This is known as “Pickling”. On the otherhand,“Unpickling” is a process of recovering real Python objects from stringrepresentation.

What is the difference between a “list” and a “tuple”?

One of the major differencesbetween list and tuple is that “list” is not constant but a “tuple” is constant.

 Name the tools that can be utilized to recognize bugs or execute static analysis in Python.

“Pylint” is a tool that checks whether module encounters accepted coding standards.       

“PyChecker” is a static analysis tool that finds bugs in source code.

What are “Dict” and “List” comprehensions?

They are syntax structures to simply create “Dictionary” or “List” built on current “iterable”.

What is a “Python decorator”?

It is a uniquemodification that can be made in the Python syntax to change functions with ease.

List the built-in “types” that Python provides?
Mutable “types”:

1. List
2. Dictionaries
3. Sets

 Immutable “types”:

1. Strings
2. Numbers
3. Tuples

 Define “lambda” in Python.

Lambdais a function of “single expression anonymous” often utilized as an inline function.

Define “pass” in Python.

It is a no-operation Python statement. In the compound statement,it is basically a placeholder which should be left blank.

What is “namespace” in Python?

It is a location where each new “name” has a place toreside.

Why it is that “lambda forms” do not have statements?

This is because that they are utilized to build new “function” objects and then return them during runtime.

 Define “slicing”.

Slicing is used to choose a range of items from series typesuch asstrings,list, tuple“Slicing” mechanismis used.

 Define iterators.

To iterate a group of “elements” or “containers” “iterators” are utilized.

Define “docstring”.

It is a Python documentation string and used to document Python “classes”,“functions”, and “modules”.

 What is a “unittest” in Python?

“unittest” is a unit testing framework for Python. It supports shutdown code for tests, sharing of setups, aggregation of tests into collections and automation testing, among others.

What are generators in Python?

Generators are means to execute iterators. It is a normal function excluding that it produces “expression” in “function”.

What is the difference between “Xrange” and “range”?

“Xrange” returns the “Xrange” object on the other hand range returns the “list” regardless of the size of the “range”.

  How do you copy an object in Python?

There are twosyntaxes to copyan object in Pythonwhich arecopy.copy () or copy.deepcopy().

How do you translate a number into a string?

By utilizingstr() an inbuilt function.