2d list comprehension python

[[float(c) for c in row] for row in data]

Source: stackoverflow.com

How list comprehension for 2D works

dx = [3, 4, 5, 9]
dy = [5, 3, 2, 1]
output_matrix = []
 
for dx_n in dx:
	dx_row = []
	for dy_n in dy:
		dx_row.append(dx_n * dy_n)
	output_matrix.append(dx_row)
 
# Output is [[15, 9, 6, 3], [20, 12, 8, 4], [25, 15, 10, 5], [45, 27, 18, 9]]

Source: agnosticdev.com

Similar codes

1 vote138 views2 answers
Creating lambda expressions in comprehension list
Python
2 votes136 views2 answers
Raise XLRDError(FILE_FORMAT_DESCRIPTIONS[file_format]+'; not supported') xlrd.biffh.XLRDError: Excel xlsx file; not supported
Python
0 vote169 views1 answer
How to compress image field in django?
Python Django
6 votes136 views2 answers
Dump json in file python
Python
-1 vote125 views1 answer
Python how to make a user input function
Python
-2 votes156 views1 answer
Quotes generator python
Python
0 vote141 views1 answer
Spacy print word in vocab
Python
2 votes177 views1 answer
Flask import jsonify
Python Flask
1 vote136 views1 answer
Python run 2 functions at the same time
Python
0 vote132 views1 answer
Python OrderedDict - LRU
Python