def print_menu():
print{'1. Kilometers to Miles')
print{'2. Miles to Kilometers'}
Here is what the above code is Doing:
1. It’s defining a function called print_menu.
2. It’s printing a menu of options.
3. It’s not returning anything.
>> import numpy as np >> x1 = np.arange(6) >> x1 [0, 1, 2, 3, 4, 5] >> np.power(x1, 3) array([ 0, 1, 8, 27, 64, 125]) # allso works with raising one array to the power of another >> x2 = np.array([[1, 2, 3, 3, 2, 1], [1, 2, 3, 3, 2, 1]]) >>…
#nfa simulation for (a|b)*abb #state 4 is a trap state import sys def main(): transition = [[[0,1],[0]], [[4],[2]], [[4],[3]], [[4],[4]]] input = raw_input(“enter the string: “) input = list(input) #copy the input in list because python strings are immutable and thus can’t be changed directly for index in range(len(input)): #parse the string of a,b in…
class Reviews(ListView): model = ProductReview paginate_by = 50 template_name = ‘review_system/reviews.html’ #add ordering: the least before the attribute means decreasing order ordering = [‘-date_created’] Here is what the above code is Doing: 1. We’re importing the ListView class from django.views.generic. 2. We’re creating a class called Reviews that inherits from ListView. 3. We’re telling Django…
>>> df = pd.DataFrame({‘col1’: [1, 2], ‘col2’: [3, 4]}) >>> df.shape (2, 2) Here is what the above code is Doing: 1. We create a DataFrame from a dictionary. 2. We call the shape method on the DataFrame. The shape method returns a tuple of the form (rows, columns).
from spacy.lang.fr.stop_words import STOP_WORDS as fr_stop from spacy.lang.en.stop_words import STOP_WORDS as en_stop final_stopwords_list = list(fr_stop) + list(en_stop) tfidf_vectorizer = TfidfVectorizer(max_df=0.8, max_features=200000, min_df=0.2, stop_words=final_stopwords_list, use_idf=True, tokenizer=tokenize_and_stem, ngram_range(1,3)) Here is what the above code is Doing: 1. max_df: this is the maximum frequency within the documents a given feature can have to be used in the tfi-idf…
from machine import Timer tim0 = Timer(0) def my_callback_function(timer): # important (timer) # do something tim0.init(period = 1000, mode = Timer.ONE_SHOT, callback = my_callback_function) # other mode : Timer.PERIODIC tim0.deinit() # stop timer Here is what the above code is Doing: 1. We’re creating a Timer object called tim0. 2. We’re defining a function called…