What is Django Framework in Python?
Django is a high-level Python framework which is used primarily for Web Development. This framework encourages fast and efficient development with pragmatic and clean design. Built by experienced developers, it takes care of much of the hassle of Web development, so you can focus on writing your app without needing to reinvent the wheel. It’s free and open source.
How will you compare two lists?
cmp(list1, list2) − Compares elements of both lists.
How will you get the length of a list?
len(list) − Gives the total length of the list.
What is the difference between tuples and lists in Python?
The main differences between lists and tuples are − Lists are enclosed in brackets ( [ ] ) and their elements and size can be changed, while tuples are enclosed in parentheses ( ( ) ) and cannot be updated. Tuples can be thought of as read-only lists.
How will you capitalizes first letter of string?
capitalize() − Capitalizes first letter of string.
How will you reverse a list?
list.reverse() − Reverses objects of list in place.
How will you sort a list?
list.sort([func]) − Sorts objects of list, use compare func if given.
Q97).Name five modules that are included in python by default (many people come searching for this, so I included some more examples of modules which are often used)
datetime (used to manipulate date and time)
re (regular expressions)
urllib, urllib2 (handles many HTTP things)
string (a collection of different groups of strings for example all lower_case letters etc)
itertools (permutations, combinations and other useful iterables)
ctypes (from python docs: create and manipulate C data types in Python)
email (from python docs: A package for parsing, handling, and generating email messages)
__future__ (Record of incompatible language changes. like division operator is different and much better when imported from __future__)
sqlite3 (handles database of SQLite type)
unittest (from python docs: Python unit testing framework, based on Erich Gamma’s JUnit and Kent Beck’s Smalltalk testing framework)
xml (xml support)
logging (defines logger classes. enables python to log details on severity level basis)
os (operating system support)
pickle (similar to json. can put any data structure to external files)
subprocess (from docs: This module allows you to spawn processes, connect to their input/output/error pipes, and obtain their return codes)
webbrowser (from docs: Interfaces for launching and remotely controlling Web browsers.)
traceback (Extract, format and print Python stack traces)
Name a module that is not included in python by default
mechanize
django
gtk
A lot of other can be found at pypi.
Django is a high-level Python framework which is used primarily for Web Development. This framework encourages fast and efficient development with pragmatic and clean design. Built by experienced developers, it takes care of much of the hassle of Web development, so you can focus on writing your app without needing to reinvent the wheel. It’s free and open source.
How will you compare two lists?
cmp(list1, list2) − Compares elements of both lists.
How will you get the length of a list?
len(list) − Gives the total length of the list.
What is the difference between tuples and lists in Python?
The main differences between lists and tuples are − Lists are enclosed in brackets ( [ ] ) and their elements and size can be changed, while tuples are enclosed in parentheses ( ( ) ) and cannot be updated. Tuples can be thought of as read-only lists.
capitalize() − Capitalizes first letter of string.
What Does The <Self> Keyword Do?
The <self> keyword is a variable that holds the instance of an object. In almost, all the object-oriented languages, it is passed to the methods as hidden parameter.
What Are Different Methods To Copy An Object In Python?
There are two ways to copy objects in Python.
copy.copy() function
It makes a copy of the file from source to destination.
It’ll return a shallow copy of the parameter.
copy.deepcopy() function
It also produces the copy of an object from the source to destination.
It’ll return a deep copy of the parameter that you can pass to the function.
What Is The Purpose Of Doc Strings In Python?
In Python, documentation string is popularly known as doc strings. It sets a process of recording Python functions, modules, and classes.
The <self> keyword is a variable that holds the instance of an object. In almost, all the object-oriented languages, it is passed to the methods as hidden parameter.
What Are Different Methods To Copy An Object In Python?
There are two ways to copy objects in Python.
copy.copy() function
It makes a copy of the file from source to destination.
It’ll return a shallow copy of the parameter.
copy.deepcopy() function
It also produces the copy of an object from the source to destination.
It’ll return a deep copy of the parameter that you can pass to the function.
What Is The Purpose Of Doc Strings In Python?
In Python, documentation string is popularly known as doc strings. It sets a process of recording Python functions, modules, and classes.
How will you reverse a list?
list.reverse() − Reverses objects of list in place.
How will you sort a list?
list.sort([func]) − Sorts objects of list, use compare func if given.
Q97).Name five modules that are included in python by default (many people come searching for this, so I included some more examples of modules which are often used)
datetime (used to manipulate date and time)
re (regular expressions)
urllib, urllib2 (handles many HTTP things)
string (a collection of different groups of strings for example all lower_case letters etc)
itertools (permutations, combinations and other useful iterables)
ctypes (from python docs: create and manipulate C data types in Python)
email (from python docs: A package for parsing, handling, and generating email messages)
__future__ (Record of incompatible language changes. like division operator is different and much better when imported from __future__)
sqlite3 (handles database of SQLite type)
unittest (from python docs: Python unit testing framework, based on Erich Gamma’s JUnit and Kent Beck’s Smalltalk testing framework)
xml (xml support)
logging (defines logger classes. enables python to log details on severity level basis)
os (operating system support)
pickle (similar to json. can put any data structure to external files)
subprocess (from docs: This module allows you to spawn processes, connect to their input/output/error pipes, and obtain their return codes)
webbrowser (from docs: Interfaces for launching and remotely controlling Web browsers.)
traceback (Extract, format and print Python stack traces)
Name a module that is not included in python by default
mechanize
django
gtk
A lot of other can be found at pypi.
What is the output of L[1:] if L = [1,2,3]?
2, 3, Slicing fetches sections.
How will you check in a string that all characters are alphanumeric?
isalnum() − Returns true if string has at least 1 character and all characters are alphanumeric and false otherwise.
How will you check in a string that all characters are digits?
isdigit() − Returns true if string contains only digits and false otherwise.
How will you check in a string that all characters are in lowercase?
islower() − Returns true if string has at least 1 cased character and all cased characters are in lowercase and false otherwise.
How To Find Bugs Or Perform Static Analysis In A Python Application?
You can use PyChecker, which is a static analyzer. It identifies the bugs in Python project and also reveals the style and complexity related bugs.
Another tool is Pylint, which checks whether the Python module satisfies the coding standard.
2, 3, Slicing fetches sections.
How will you check in a string that all characters are alphanumeric?
isalnum() − Returns true if string has at least 1 character and all characters are alphanumeric and false otherwise.
How will you check in a string that all characters are digits?
isdigit() − Returns true if string contains only digits and false otherwise.
How will you check in a string that all characters are in lowercase?
islower() − Returns true if string has at least 1 cased character and all cased characters are in lowercase and false otherwise.
How To Find Bugs Or Perform Static Analysis In A Python Application?
You can use PyChecker, which is a static analyzer. It identifies the bugs in Python project and also reveals the style and complexity related bugs.
Another tool is Pylint, which checks whether the Python module satisfies the coding standard.
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