[python] How do you create nested dict in Python?

This thing is empty nested list from which ne will append data to empty dict

ls = [['a','a1','a2','a3'],['b','b1','b2','b3'],['c','c1','c2','c3'], 
['d','d1','d2','d3']]

this means to create four empty dict inside data_dict

data_dict = {f'dict{i}':{} for i in range(4)}
for i in range(4):
    upd_dict = {'val' : ls[i][0], 'val1' : ls[i][1],'val2' : ls[i][2],'val3' : ls[i][3]}

    data_dict[f'dict{i}'].update(upd_dict)

print(data_dict)

The output

{'dict0': {'val': 'a', 'val1': 'a1', 'val2': 'a2', 'val3': 'a3'}, 'dict1': {'val': 'b', 'val1': 'b1', 'val2': 'b2', 'val3': 'b3'},'dict2': {'val': 'c', 'val1': 'c1', 'val2': 'c2', 'val3': 'c3'}, 'dict3': {'val': 'd', 'val1': 'd1', 'val2': 'd2', 'val3': 'd3'}}

Examples related to python

programming a servo thru a barometer Is there a way to view two blocks of code from the same file simultaneously in Sublime Text? python variable NameError Why my regexp for hyphenated words doesn't work? Comparing a variable with a string python not working when redirecting from bash script is it possible to add colors to python output? Get Public URL for File - Google Cloud Storage - App Engine (Python) Real time face detection OpenCV, Python xlrd.biffh.XLRDError: Excel xlsx file; not supported Could not load dynamic library 'cudart64_101.dll' on tensorflow CPU-only installation

Examples related to python-2.7

Numpy, multiply array with scalar Not able to install Python packages [SSL: TLSV1_ALERT_PROTOCOL_VERSION] How to create a new text file using Python Could not find a version that satisfies the requirement tensorflow Python: Pandas pd.read_excel giving ImportError: Install xlrd >= 0.9.0 for Excel support Display/Print one column from a DataFrame of Series in Pandas How to calculate 1st and 3rd quartiles? How can I read pdf in python? How to completely uninstall python 2.7.13 on Ubuntu 16.04 Check key exist in python dict

Examples related to dictionary

JS map return object python JSON object must be str, bytes or bytearray, not 'dict Python update a key in dict if it doesn't exist How to update the value of a key in a dictionary in Python? How to map an array of objects in React C# Dictionary get item by index Are dictionaries ordered in Python 3.6+? Split / Explode a column of dictionaries into separate columns with pandas Writing a dictionary to a text file? enumerate() for dictionary in python

Examples related to mapping

Elasticsearch : Root mapping definition has unsupported parameters index : not_analyzed When do you use map vs flatMap in RxJava? How do you create nested dict in Python? Best Practices for mapping one object to another Create a map with clickable provinces/states using SVG, HTML/CSS, ImageMap Deserialize JSON to ArrayList<POJO> using Jackson How to force Hibernate to return dates as java.util.Date instead of Timestamp? Entity framework code-first null foreign key Mapping many-to-many association table with extra column(s) Mapping object to dictionary and vice versa

Examples related to nested

Nested routes with react router v4 / v5 Extract first item of each sublist python "TypeError: 'numpy.float64' object cannot be interpreted as an integer" How can I combine multiple nested Substitute functions in Excel? Retrieving values from nested JSON Object MySQL Nested Select Query? List comprehension on a nested list? Nested ifelse statement Single Line Nested For Loops Nested or Inner Class in PHP