Python Strings Replace Single Quotes with Double Quotes

In this python tutorial we will learn python string replace single quotes with double quotes. This article will give you a simple example of python string replace single quote with double quote. In this article, we will implement a how to replace double quote to single quotes in python string. I’m going to show you about python string replace single with double quotes.

In this example, i will give you several examples of replacing single quotes with double quotes in python. we will use replace() function and dumps() of json library in python. So, without further ado, let's see simple examples: You can use these examples with python3 (Python 3) version.

Example 1: Python String Replace Single Quotes with Double Quotes

main.py

myString = "It 'Solution' Stuff com"
  
# python string replace single quotes with double
newString = myString.replace("'", '"')
   
print(newString)

Output:

It "Solution" Stuff com

Example 2: Python String Replace Double Quotes with Single Quotes

main.py

myString = 'It "Solution" Stuff com'
   
# python string replace double quotes with single
newString = myString.replace('"', "'")
   
print(newString)

Output:

It 'Solution' Stuff com

Example 3: Python List Replace Double Quotes with Single Quotes

main.py

import json
  
myList = ["It", "Solution", "Stuff", "com"]
  
# python list replace double quotes with single
newList = [item.replace("'", '"') for item in myList]
  
print(newList);

Output:

['It', 'Solution', 'Stuff', 'com']

Example 4: Python List Replace Single Quotes with Double Quotes

main.py

import json
  
myList = ['It', 'Solution', 'Stuff', 'com']
  
# python list replace single quotes with double
newList = json.dumps(myList)
  
print(newList);

Output:

["It", "Solution", "Stuff", "com"]

---

Original article sourced at: https://www.itsolutionstuff.com

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Lambda, Map, Filter functions in python

Welcome to my Blog, In this article, we will learn python lambda function, Map function, and filter function.

Lambda function in python: Lambda is a one line anonymous function and lambda takes any number of arguments but can only have one expression and python lambda syntax is

Syntax: x = lambda arguments : expression

Now i will show you some python lambda function examples:

#python #anonymous function python #filter function in python #lambda #lambda python 3 #map python #python filter #python filter lambda #python lambda #python lambda examples #python map

Why use Python for Software Development

No programming language is pretty much as diverse as Python. It enables building cutting edge applications effortlessly. Developers are as yet investigating the full capability of end-to-end Python development services in various areas. 

By areas, we mean FinTech, HealthTech, InsureTech, Cybersecurity, and that's just the beginning. These are New Economy areas, and Python has the ability to serve every one of them. The vast majority of them require massive computational abilities. Python's code is dynamic and powerful - equipped for taking care of the heavy traffic and substantial algorithmic capacities. 

Programming advancement is multidimensional today. Endeavor programming requires an intelligent application with AI and ML capacities. Shopper based applications require information examination to convey a superior client experience. Netflix, Trello, and Amazon are genuine instances of such applications. Python assists with building them effortlessly. 

5 Reasons to Utilize Python for Programming Web Apps 

Python can do such numerous things that developers can't discover enough reasons to admire it. Python application development isn't restricted to web and enterprise applications. It is exceptionally adaptable and superb for a wide range of uses.

Robust frameworks 

Python is known for its tools and frameworks. There's a structure for everything. Django is helpful for building web applications, venture applications, logical applications, and mathematical processing. Flask is another web improvement framework with no conditions. 

Web2Py, CherryPy, and Falcon offer incredible capabilities to customize Python development services. A large portion of them are open-source frameworks that allow quick turn of events. 

Simple to read and compose 

Python has an improved sentence structure - one that is like the English language. New engineers for Python can undoubtedly understand where they stand in the development process. The simplicity of composing allows quick application building. 

The motivation behind building Python, as said by its maker Guido Van Rossum, was to empower even beginner engineers to comprehend the programming language. The simple coding likewise permits developers to roll out speedy improvements without getting confused by pointless subtleties. 

Utilized by the best 

Alright - Python isn't simply one more programming language. It should have something, which is the reason the business giants use it. Furthermore, that too for different purposes. Developers at Google use Python to assemble framework organization systems, parallel information pusher, code audit, testing and QA, and substantially more. Netflix utilizes Python web development services for its recommendation algorithm and media player. 

Massive community support 

Python has a steadily developing community that offers enormous help. From amateurs to specialists, there's everybody. There are a lot of instructional exercises, documentation, and guides accessible for Python web development solutions. 

Today, numerous universities start with Python, adding to the quantity of individuals in the community. Frequently, Python designers team up on various tasks and help each other with algorithmic, utilitarian, and application critical thinking. 

Progressive applications 

Python is the greatest supporter of data science, Machine Learning, and Artificial Intelligence at any enterprise software development company. Its utilization cases in cutting edge applications are the most compelling motivation for its prosperity. Python is the second most well known tool after R for data analytics.

The simplicity of getting sorted out, overseeing, and visualizing information through unique libraries makes it ideal for data based applications. TensorFlow for neural networks and OpenCV for computer vision are two of Python's most well known use cases for Machine learning applications.

Summary

Thinking about the advances in programming and innovation, Python is a YES for an assorted scope of utilizations. Game development, web application development services, GUI advancement, ML and AI improvement, Enterprise and customer applications - every one of them uses Python to its full potential. 

The disadvantages of Python web improvement arrangements are regularly disregarded by developers and organizations because of the advantages it gives. They focus on quality over speed and performance over blunders. That is the reason it's a good idea to utilize Python for building the applications of the future.

#python development services #python development company #python app development #python development #python in web development #python software development

String Replace in Python | Python String Replace [2021] |

Replacing characters and strings in Python is a crucial task when it comes to Data Cleaning or Text Processing. Your data might have formatting issues with garbage characters that need to be removed, the categories might be having spelling issues, etc. Also while text preprocessing for NLP based problems, string replacement is the most basic and important step while preparing the textual data.

In this tutorial, we will be going over multiple ways to replace different types of strings. By the end of this tutorial, you will have the knowledge of the following:

• Python replace() method
• Regex sub() method
• join() and filter()
• Replacing numeric data in strings

#data science #python #python string #string replace

String Replace in Python | Python String Replace [2021]

Replacing characters and strings in Python is a crucial task when it comes to Data Cleaning or Text Processing. Your data might have formatting issues with garbage characters that need to be removed, the categories might be having spelling issues, etc. Also while text preprocessing for NLP based problems, string replacement is the most basic and important step while preparing the textual data.

In this tutorial, we will be going over multiple ways to replace different types of strings. By the end of this tutorial, you will have the knowledge of the following:

• Python replace() method
• Regex sub() method
• join() and filter()
• Replacing numeric data in strings

#data science #python #python string #string replace

Python String.Replace() – Function in Python for Substring Substitution

In this article you'll see how to use Python's .replace() method to perform substring substiution.

You'll also see how to perform case-insensitive substring substitution.

Let's get started!

What does the .replace() Python method do?

When using the .replace() Python method, you are able to replace every instance of one specific character with a new one. You can even replace a whole string of text with a new line of text that you specify.

The .replace() method returns a copy of a string. This means that the old substring remains the same, but a new copy gets created – with all of the old text having been replaced by the new text.

How does the .replace() Python method work? A Syntax Breakdown

The syntax for the .replace() method looks like this:

string.replace(old_text, new_text, count)

Let's break it down:

• old_text is the first required parameter that .replace() accepts. It's the old character or text that you want to replace. Enclose this in quotation marks.
• new_text is the second required parameter that .replace() accepts. It's the new character or text which you want to replace the old character/text with. This parameter also needs to be enclosed in quotation marks.
• count is the optional third parameter that .replace() accepts. By default, .replace() will replace all instances of the substring. However, you can use count to specify the number of occurrences you want to be replaced.

Python .replace() Method Code Examples

How to Replace All Instances of a Single Character

To change all instances of a single character, you would do the following:

phrase = "I like to learn coding on the go"

# replace all instances of 'o' with 'a'
substituted_phrase = phrase.replace("o", "a" )

print(phrase)
print(substituted_phrase)

#output

#I like to learn coding on the go
#I like ta learn cading an the ga

In the example above, each word that contained the character o is replaced with the character a.

In that example there were four instances of the character o. Specifically, it was found in the words to, coding, on, and go.

What if you only wanted to change two words, like to and coding, to contain a instead of o?

How to Replace Only a Certain Number of Instances of a Single Character

To change only two instances of a single character, you would use the count parameter and set it to two:

phrase = "I like to learn coding on the go"

# replace only the first two instances of 'o' with 'a'
substituted_phrase = phrase.replace("o", "a", 2 )

print(phrase)
print(substituted_phrase)

#output

#I like to learn coding on the go
#I like ta learn cading on the go

If you only wanted to change the first instance of a single character, you would set the count parameter to one:

phrase = "I like to learn coding on the go"

# replace only the first instance of 'o' with 'a'
substituted_phrase = phrase.replace("o", "a", 1 )

print(phrase)
print(substituted_phrase)

#output

#I like to learn coding on the go
#I like ta learn coding on the go

How to Replace All Instances of a String

To change more than one character, the process looks similar.

phrase = "The sun is strong today. I don't really like sun."

#replace all instances of the word 'sun' with 'wind'
substituted_phrase = phrase.replace("sun", "wind")

print(phrase)
print(substituted_phrase)

#output

#The sun is strong today. I don't really like sun.
#The wind is strong today. I don't really like wind.

In the example above, the word sun was replaced with the word wind.

How to Replace Only a Certain Number of Instances of a String

If you wanted to change only the first instance of sun to wind, you would use the count parameter and set it to one.

phrase = "The sun is strong today. I don't really like sun."

#replace only the first instance of the word 'sun' with 'wind'
substituted_phrase = phrase.replace("sun", "wind", 1)

print(phrase)
print(substituted_phrase)

#output

#The sun is strong today. I don't really like sun.
#The wind is strong today. I don't really like sun.

How to Perform Case-Insensitive Substring Substitution in Python

Let's take a look at another example.

phrase = "I am learning Ruby. I really enjoy the ruby programming language!"

#replace the text "Ruby" with "Python"
substituted_text = phrase.replace("Ruby", "Python")

print(substituted_text)

#output

#I am learning Python. I really enjoy the ruby programming language!

In this case, what I really wanted to do was to replace all instances of the word Ruby with Python.

However, there was the word ruby with a lowercase r, which I would also like to change.

Because the first letter was in lowercase, and not uppercase as I specified with Ruby, it remained the same and didn't change to Python.

The .replace() method is case-sensitive, and therefore it performs a case-sensitive substring substitution.

In order to perform a case-insensitive substring substitution you would have to do something different.

You would need to use the re.sub() function and use the re.IGNORECASE flag.

To use re.sub() you need to:

• Use the re module, via import re.
• Speficy a regular expression pattern.
• Mention with what you want to replace the pattern.
• Mention the string you want to perform this operation on.
• Optionally, specify the count parameter to make the replacement more precise and specify the maximum number of replacements you want to take place.
• The re.IGNORECASE flag tells the regular expression to perform a case-insensitive match.

So, all together the syntax looks like this:

import re

re.sub(pattern, replace, string, count, flags) 

Taking the example from earlier:

phrase = "I am learning Ruby. I really enjoy the ruby programming language!"

This is how I would replace both Ruby and ruby with Python:

import re

phrase = "I am learning Ruby. I really enjoy the ruby programming language!"

phrase = re.sub("Ruby","Python", phrase, flags=re.IGNORECASE)

print(phrase)

#output

#I am learning Python. I really enjoy the Python programming language!

Wrapping up

And there you have it - you now know the basics of substring substitution. Hopefully you found this guide helpful.

To learn more about Python, check out freeCodeCamp's Scientific Computing with Python Certification.

You'll start from the basics and learn in an interacitve and beginner-friendly way. You'll also build five projects at the end to put into practice and help reinforce what you learned.

Thanks for reading and happy coding!

Link: https://www.freecodecamp.org/news/python-string-replace-function-in-python-for-substring-substitution/

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