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Comparison between Python 2 and Python 3

NexSoftsys
NexSoftsys

Getting aware of the new versions of the languages is always beneficial as a developer. Compare Python 3 with Python 2 to know how Python comes with the new features. Try it to make your Python development easy.

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Python 2 VS Python 3: Essential Features for Modern Development
Unicode Support VS Python 2 Python 3 In Python 2, strings are by default ASCII-encoded, and Unicode strings need to be explicitly declared using the u"string" syntax. Python 3 natively supports Unicode strings, allowing you to work with text in different languages and character sets more easily.
Print Function VS Python 2 Python 3 In Python 2, print is a statement and does not require parentheses (e.g., print "Hello"). In Python 3, print is a built-in function, requiring parentheses around the arguments (e.g., print("Hello")). This change aligns the print statement with other function calls.
Division Operator VS Python 2 Python 3 In Python 2, dividing two integers using the division operator (/) truncates the result to the nearest floor value, resulting in an integer. To obtain a float result, you need to use the floor division operator (//). In Python 3, the division operator (/) always returns a float result, even when dividing two integers. This behavior helps avoid unexpected results and improves the accuracy of mathematical operations.
Iteration & Looping VS Python 2 Python 3 In Python 2, the traditional syntax for looping over iterable objects is for x in xrange(iterable). Python 3 introduced a simplified syntax for looping over iterable objects using the for x in iterable syntax. This syntax is more concise and intuitive compared to the traditional for x in xrange(iterable) syntax in Python 2.
Exception Handling VS Python 2 Python 3 Python 2 has limited exception handling capabilities, lacking the 'as' keyword and the 'finally' clause. Python 3 improved the exception handling syntax, making it more consistent and intuitive. The 'as' keyword allows capturing the exception instance for further processing, and the 'finally' keyword ensures the execution of cleanup code regardless of whether an exception occurs.
VS Type Hints Python 2 Python 3 Python 2 does not have built-in support for type hints, as they were introduced in Python 3 to enhance code readability and maintainability. Python 3 introduced type hints, allowing developers to annotate variables, function parameters, and return types with type information. These hints are optional and can be used by static type checkers and IDEs for improved code analysis.
VS f-strings Python 2 Python 3 Python 2 lacks support for f- strings and typically uses the format() method or the % operator for string formatting. Python 3 introduced f-strings, a concise and convenient way to format strings. They allow embedding expressions inside string literals, enclosed by curly braces '{}'.
Python 2 and Python 3 Navigating the Development Landscape In today's rapidly evolving technological landscape, understanding the differences between Python 2 and Python 3 is crucial for successful development of applications. And this is why Python Development Services have to always be prepared for the latest and trending changes to the language for better development.
info@nexsoftsys.com www.nexsoftsys.com Royal Square Office No. 110, Tagore Rd, Rajkot 360001 Gujarat, India NEX SOFTSYS Offshore Software Development Company Head Office: 477 Madison Avenue, 6th floor New York 10022 USA Branch Office:
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Comparison between Python 2 and Python 3

  • 1. Python 2 VS Python 3: Essential Features for Modern Development
  • 2. Unicode Support VS Python 2 Python 3 In Python 2, strings are by default ASCII-encoded, and Unicode strings need to be explicitly declared using the u"string" syntax. Python 3 natively supports Unicode strings, allowing you to work with text in different languages and character sets more easily.
  • 3. Print Function VS Python 2 Python 3 In Python 2, print is a statement and does not require parentheses (e.g., print "Hello"). In Python 3, print is a built-in function, requiring parentheses around the arguments (e.g., print("Hello")). This change aligns the print statement with other function calls.
  • 4. Division Operator VS Python 2 Python 3 In Python 2, dividing two integers using the division operator (/) truncates the result to the nearest floor value, resulting in an integer. To obtain a float result, you need to use the floor division operator (//). In Python 3, the division operator (/) always returns a float result, even when dividing two integers. This behavior helps avoid unexpected results and improves the accuracy of mathematical operations.
  • 5. Iteration & Looping VS Python 2 Python 3 In Python 2, the traditional syntax for looping over iterable objects is for x in xrange(iterable). Python 3 introduced a simplified syntax for looping over iterable objects using the for x in iterable syntax. This syntax is more concise and intuitive compared to the traditional for x in xrange(iterable) syntax in Python 2.
  • 6. Exception Handling VS Python 2 Python 3 Python 2 has limited exception handling capabilities, lacking the 'as' keyword and the 'finally' clause. Python 3 improved the exception handling syntax, making it more consistent and intuitive. The 'as' keyword allows capturing the exception instance for further processing, and the 'finally' keyword ensures the execution of cleanup code regardless of whether an exception occurs.
  • 7. VS Type Hints Python 2 Python 3 Python 2 does not have built-in support for type hints, as they were introduced in Python 3 to enhance code readability and maintainability. Python 3 introduced type hints, allowing developers to annotate variables, function parameters, and return types with type information. These hints are optional and can be used by static type checkers and IDEs for improved code analysis.
  • 8. VS f-strings Python 2 Python 3 Python 2 lacks support for f- strings and typically uses the format() method or the % operator for string formatting. Python 3 introduced f-strings, a concise and convenient way to format strings. They allow embedding expressions inside string literals, enclosed by curly braces '{}'.
  • 9. Python 2 and Python 3 Navigating the Development Landscape In today's rapidly evolving technological landscape, understanding the differences between Python 2 and Python 3 is crucial for successful development of applications. And this is why Python Development Services have to always be prepared for the latest and trending changes to the language for better development.
  • 10. info@nexsoftsys.com www.nexsoftsys.com Royal Square Office No. 110, Tagore Rd, Rajkot 360001 Gujarat, India NEX SOFTSYS Offshore Software Development Company Head Office: 477 Madison Avenue, 6th floor New York 10022 USA Branch Office: