logo
down
shadow

From traditional loop to list comprehension


From traditional loop to list comprehension

Content Index :

From traditional loop to list comprehension
Tag : python , By : BinaryBoy
Date : November 29 2020, 12:01 PM

With these it helps I believe this rework mimics your original code but is significantly simpler:
def productFib(target):
    fibonacci = [0, 1]

    while True:
        product = fibonacci[0] * fibonacci[1]

        if product >= target:
            return fibonacci + [product == target]

        fibonacci[:] = fibonacci[1], sum(fibonacci)

print(productFib(272))
print(productFib(273))
print(productFib(274))
> python3 test.py
[13, 21, False]
[13, 21, True]
[21, 34, False]
>

Comments
No Comments Right Now !

Boards Message :
You Must Login Or Sign Up to Add Your Comments .

Share : facebook icon twitter icon

Understanding list comprehension vs traditional loop and build


Tag : python , By : user119413
Date : March 29 2020, 07:55 AM
it should still fix some issue List comprehension is simply a way of creating a list based on another list. (Or other iterable item)
For instance, if we have a list a = [1, 2, 5, 7], then we could create a list, b, containing the values of a doubled in two ways.
b = []
for e in a:
    b.append(2*e)
b = [2*e for e in a]

Replacing loop with List Comprehension instead of loop getting a function to return a new array within the list comprehe


Tag : python , By : Ron
Date : March 29 2020, 07:55 AM
To fix the issue you can do While list comprehensions are indeed interpreted faster than regular loops, they can't work for everything. I don't think you could replace your main for loop by a list comprehension. However, there might be some room for improvement:
time = [ish[0] for ish in book]
var = np.array([t.replace(':',',') for t in time], dtype=float)
var -= float(str(book[0]).replace(":", ","))
bs_reduced = bs[(var < 0.1) & (var >=0)]

Different results for list comprehension of files in directory compared to traditional loop


Tag : python , By : Arun Thakkar
Date : March 29 2020, 07:55 AM
With these it helps I need to obtain all the file is a directory and its sub-directories. I'm curious as to why I am getting different results from what I think should be two equivalent python expression. If anyone can explain the difference it would be helpful. Not that I am partial to any particular method but I would like to at least know how to properly write a list comprehension for this. , I think you want this:
import os.path

result = [
    os.path.join(dirpath, filename)
    for dirpath, _, files in os.walk(directory)
    for filename in files if '.nc' in filename
]
result = sum(1
    for dirpath, _, files in os.walk(directory)
    for filename in files if '.nc' in filename
)

foreach and traditional for-loop with List<T> in C#


Tag : chash , By : Reiner
Date : March 29 2020, 07:55 AM
should help you out This doesn't answer your question completely, but still wanted to point out that this assumption is false:
static void Main(string[] args)
{
    var data = new List<int> { 7, 10, 0 };
    for (var it = data.GetEnumerator(); it.MoveNext(); )
    {
        Console.WriteLine(it.Current);
    }
}

Convert list comprehension to traditional approach


Tag : python , By : Novi Indrayani
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further The list comprehension is one argument to a call to p.imap_unordered(); you'd need to extract it first:
_arg2 = [(x1, models, y1) for _ in range(iterations)]
for result in p.imap_unordered(process_next, _arg2):
    # ...
_arg2 = []
for _ in range(iterations):
    _arg2.append((x1, models, y1))
for result in p.imap_unordered(process_next, _arg2):
    # ...
Related Posts Related QUESTIONS :
  • How to change font size of all .docx document with python-docx
  • How to store a word with # in .cfg file
  • How to append dictionaries to a dictionary?
  • How can I scrape text within paragraph tag with some other tags then within the paragraph text?
  • Custom entity ruler with SpaCy did not return a match
  • Logging with two handlers - one to file and one to stderr
  • How to do pivot_table in dask with aggfunc 'min'?
  • This for loop displays only the last entry of the student record
  • How to split a string by a specific pattern in number of characters?
  • Python 3: how to scrape research results from a website using CSFR?
  • Setting the scoring parameter of RandomizedSeachCV to r2
  • How to send alert or message from view.py to template?
  • How to add qml ScatterSeries to existing qml defined ChartView?
  • Django + tox: Apps aren't loaded yet
  • My css and images arent showing in django
  • Probability mass function sum 2 dice roll?
  • Cannot call ubuntu 'ulimit' from python subprocess without using shell option
  • Dataframe Timestamp Filter for new/repeating value
  • Problem with clicking select2 dropdownlist in selenium
  • pandas dataframe masks to write values into new column
  • How to click on item in navigation bar on top of page using selenium python?
  • Add multiple EntityRuler with spaCy (ValueError: 'entity_ruler' already exists in pipeline)
  • error when replacing missing ')' using negative look ahead regex in python
  • Is there a way to remove specific strings from indexes using a for loop?
  • select multiple tags by position in beautifulSoup
  • pytest: getting AttributeError: 'CaptureFixture' object has no attribute 'readouterror' capturing stdout
  • Shipping PyGObject/GTK+ app on Windows with MingW
  • Python script to deduplicate lines in multiple files
  • How to prevent window and widgets in a pyqt5 application from changing size when the visibility of one widget is altered
  • How to draw stacked bar plot from df.groupby('feature')['label'].value_counts()
  • Python subprocess doesn't work without sleep
  • How can I adjust 'the time' in python with module Re
  • Join original np array with resulting np array in a form of dictionary? multidimensional array? etc?
  • Forcing labels on histograms in each individual graph in a figure
  • For an infinite dataset, is the data used in each epoch the same?
  • Is there a more efficent way to extend a string?
  • How to calculate each single element of a numpy array based on conditions
  • How do I change the width of Jupyter notebook's cell's left part?
  • Measure distance between lat/lon coordinates and utm coordinates
  • Installing megam for NLTK on Windows
  • filter dataframe on each value of a samn column have a specific value of another column in Panda\Python
  • Threading with pubsub throwing AssertionError: 'callableObj is not callable' in wxPython
  • Get grouped data from 2 dataframes with condition
  • How can I import all of sklearns regressors
  • How to take all elements except the first k
  • Whats wrong with my iteration list of lists from csv
  • Tensorflow Estimator API save image summary in eval mode
  • How to Pack with PyQt - how to make QFrame/Layout adapt to content
  • How do I get certain Time Range in Python
  • python doubly linked list - insertAfter node
  • Open .h5 file in Python
  • Joining a directory name with a binary file name
  • python, sort list with two arguments in compare function
  • Is it possible to print from Python using non-ANSI colors?
  • Pandas concat historical data using date minus some number of days
  • CV2: Import Error in Python OpenCV
  • Is it possible to do this loop in a one-liner?
  • invalid literal for int() with base 10: - django
  • Why does my code print a value that I have not assigned as yet?
  • the collatz func in automate boring stuff with python
  • shadow
    Privacy Policy - Terms - Contact Us © scrbit.com