Filter NaN Pandas
To filter out the rows having the NaN values in Python, the “dataframe” functions, such as “dataframe.notnull()”, and “dataframe.dropna()” functions are used.
NumPy Save Dict
To save the dictionary into a file in Python, the “dump()” function is used and the “load()” function is used to read the saved dictionary from a file.
Remove Special Characters from String Python
To remove special characters from the string in Python, the “isalnum()”, “replace()”, “translate()”, “filter()”, and “re.sub()” methods are used.
7 Different Types of Operators in Python [With Examples]
Any developer who wants to write out effective and efficient code must be familiar with using operators in Python.
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Python List to Comma Separated String
To convert a Python list to a comma-separated string, apply “join()” method, “join()” with “List Comprehension” approach, “for” loop, or the “StringIO” module.
Python Math Exp
In Python, the “math.exp()” function of the “math” module is used to calculate the exponent power of numeric values such as “int” and “float”.
Python os.path.expanduser() Method
The “os.path.expanduser()” method allows us to easily expand paths that start with “~” or “~user” to the appropriate home directory path.
Python StringIO
In Python, the “StringIO” module is used to manipulate strings as if they were files. This module provides various methods to perform specific tasks in Python.
Seaborn Horizontal Bar Plot
To create, and customize the horizontal bar plot the “seaborn.barplot()” function of the “seaborn” library is used with various parameters in Python.
Python Write String to File
To write a string to file various methods such as the “write()” method, “with” statement, and “fileinput” module are used in Python.
How Do I Convert an Exception to a String in Python
To convert an exception to a string the “str()” function, “traceback.format_exc()” function, and “repr()” function is used in Python.
How to Unzip Files in Python
The “zipfile” module and the “shutil” module are used to unzip single or multiple files from the specified zip file in Python.
Python Count Characters in String
To count characters in a string in Python, apply the “len()” function, “Counter” class from the collections module, “dictionary comprehension”, etc.
Python Count Occurrences in List
To count the occurrences in a list in Python, apply the “count()” method, “Counter” class, “operator” module, “List Comprehension” approach, or the “for” loop.
Matplotlib Bold Text
The “fontweight” and “weight” parameters are used to bold a text in Matplotlib. It is used to emphasize key information and enhance visualizations.
Convert String to Set Python
To convert the given string to a set, various methods such as “set()” function, “add()” method, or the “set comprehension” can be used in Python.
How to Use Xrange in Python
The xrange() function in Python 2.x or range() function in Python 3.x is used for efficient iteration over a range of values.
Python Finds the Index of All Occurrences in a List
The “for” loop, “enumerate()” function, “index()” method, or the “defaultdict()” function can be used to find the index of all occurrences in a list in Python.
NumPy Astype
The “astype()” method of the numpy module is used to change the data type of a NumPy array into other data types such as str, int, complex, etc.
How Do I Check If a String Is Empty in Python
“not” operator, “len()” function, “strip()” function, “==” operator, “__eq__()” method, or “not + str.isspace()” method can check if string is empty in Python.