A pattern that often came up in Python was
bar = [] for item in some_iterable: bar.append(SOME EXPRESSION)
which helped motivate the introduction of list comprehensions, which convert that snippet to
bar = [SOME EXPRESSION for item in some_iterable]
which is shorter and sometimes clearer. Usually you get in the habit of recognizing these and often replacing loops with comprehensions.
Your code follows this pattern twice
twod_list = [] \ for i in range (0, 10): \ new = [] \ can be replaced } this too for j in range (0, 10): } with a list / new.append(foo) / comprehension / twod_list.append(new) /
Related Posts:
- How to make a flat list out of a list of lists
- What is the purpose of meshgrid in Python / NumPy?
- How does numpy.newaxis work and when to use it?
- How to count the occurrence of certain item in an ndarray?
- How to initialize a two-dimensional array in Python?
- Create 3D array using Python
- How to have an array of arrays in Python
- Two dimensional array in python
- Understanding NumPy’s einsum
- Iterating over a 2 dimensional python list [duplicate]
- Good ways to “expand” a numpy ndarray?
- Using numpy to build an array of all combinations of two arrays
- Rotating a two-dimensional array in Python
- Convert a 1D array to a 2D array in numpy
- How do I lowercase a string in Python?
- Difference between del, remove, and pop on lists
- How to use the pass statement
- How do you round UP a number?
- What’s the canonical way to check for type in Python?
- IndexError: tuple index out of range —– Python
- What is the pythonic way to calculate dot product?
- How to resize an image with OpenCV2.0 and Python2.6
- Is there a ‘foreach’ function in Python 3?
- How to condense if/else into one line in Python?
- Depth-first search (DFS) code in python
- How to use Python to execute a cURL command?
- What does %s mean in a python format string?
- Redirecting to URL in Flask
- TypeError: ‘float’ object is not callable
- Plotting a 2D heatmap with Matplotlib
- Purpose of __repr__ method?
- json.dumps vs flask.jsonify
- How do I concatenate two lists in Python?
- Convert a tensor to numpy array in Tensorflow?
- How to run Conda?
- How do I check whether a file exists without exceptions?
- How can I get dictionary key as variable directly in Python (not by searching from value)?
- pygame.error: video system not initialized
- Python – Reading and writing csv files with utf-8 encoding
- Python’s equivalent of && (logical-and) in an if-statement
- Replace values in list using Python
- Trouble updating to Anaconda Navigator 1.10.0 (MacOS)
- Binary numbers in Python
- Django: ImproperlyConfigured: The SECRET_KEY setting must not be empty
- builtins.TypeError: must be str, not bytes
- How do you read from stdin?
- takes 1 positional argument but 2 were given
- Forbidden (403) CSRF verification failed. Request aborted. Even using the {% csrf_token %}
- Flask ImportError: No Module Named Flask
- ModuleNotFoundError: No module named ‘MySQLdb’
- How to change dataframe column names in pyspark?
- Normalize data in pandas
- python ZeroDivisionError: float division by zero – how to treat it as an exception
- Unresolved reference issue in PyCharm
- How to use 2to3 properly for python?
- Is there a way to return literally nothing in python?
- Is there a built-in function to print all the current properties and values of an object?
- How to troubleshoot an “AttributeError: __exit__” in multiproccesing in Python?
- TypeError : Unhashable type
- Read PDF in Python and convert to text in PDF
- Importing variables from another file in Python
- How to read a file without newlines?
- pip: no module named _internal
- Image.open() cannot identify image file – Python?
- python socket programming OSError: [WinError 10038] an operation was attempted on something that is not a socket
- Multiple try codes in one block
- Error: Segmentation fault (core dumped)
- can’t open tensorboard 0.0.0.0:6006 or localhost:6006
- ImportError: No module named ‘django.core.urlresolvers’
- Numpy, multiply array with scalar
- Python 3: Multiply a vector by a matrix without NumPy
- How to fix “Can’t find a default Python” error
- TypeError: ‘newline’ is an invalid keyword argument for this function
- datetime to string with series in pandas
- Is it possible only to declare a variable without assigning any value in Python?
- How to Install pip for python 3.7 on Ubuntu 18?
- How to add a new row to an empty numpy array
- Logical indexing with lists
- How to set timeout on python’s socket recv method?
- How does str(list) work?
- Automatic indentation for Python in Notepad++
- How do I calculate the date six months from the current date using the datetime Python module?
- How to embed image or picture in jupyter notebook, either from a local machine or from a web resource?
- How to make a python script wait for a pressed key?
- TypeError: Image data can not convert to float
- Mean Squared Error in Numpy?
- Turn a single number into single digits Python
- Is there a head and tail method for Numpy array?
- What should I use to open a url instead of urlopen in urllib3
- numpy.float64 object is not iterable…but I’m NOT trying to
- Converting a list to a set changes element order
- Create a list with initial capacity in Python
- Accessing dict_keys element by index in Python3
- How to update Pandas from Anaconda and is it possible to use eclipse with this last
- Does python support character type?
- Styling multi-line conditions in ‘if’ statements?
- What is related_name used for?
- Symbol not found: __PyCodecInfo_GetIncrementalDecoder
- How can I tail a log file in Python?
- How to write unicode strings into a file?