Week 2 class demo

import random

random.seed(42)

random.randrange(1,11)

random.randint(1,10)

colors = ['red', 'green', 'blue', 'fuzzy']

random.choice(colors)

'blue'

options = ['a', 'b', 'c', 'd', 'e', 'f']

options.append('g')

print(options)

['a', 'b', 'c', 'd', 'e', 'f', 'g']

random.shuffle(options)

options

['e', 'a', 'c', 'd', 'f', 'b']

random.shuffle(options)

print(options)

None

options

['e', 'a', 'c', 'd', 'f', 'b']

options

'd'

text = "

text = """India (official name: the Republic of India;[19] Hindi: Bhārat Gaṇarājya) is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west;[d] China, Nepal, and Bhutan to the north; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives; its Andaman and Nicobar Islands share a maritime border with Thailand and Indonesia.

Modern humans arrived on the Indian subcontinent from Africa no later than 55,000 years ago.[20] Their long occupation, initially in varying forms of isolation as hunter-gatherers, has made the region highly diverse, second only to Africa in human genetic diversity.[21] Settled life emerged on the subcontinent in the western margins of the Indus river basin 9,000 years ago, evolving gradually into the Indus Valley Civilisation of the third millennium BCE.[22] By 1200 BCE, an archaic form of Sanskrit, an Indo-European language, had diffused into India from the northwest, unfolding as the language of the Rigveda, and recording the dawning of Hinduism in India.[23] The Dravidian languages of India were supplanted in the northern regions.[24] By 400 BCE, stratification and exclusion by caste had emerged within Hinduism,[25] and Buddhism and Jainism had arisen, proclaiming social orders unlinked to heredity.[26] Early political consolidations gave rise to the loose-knit Maurya and Gupta Empires based in the Ganges Basin.[27] Their collective era was suffused with wide-ranging creativity,[28] but also marked by the declining status of women,[29] and the incorporation of untouchability into an organized system of belief.[e][30] In south India, the Middle kingdoms exported Dravidian-languages scripts and religious cultures to the kingdoms of southeast Asia.[31]

In the early medieval era, Christianity, Islam, Judaism and Zoroastrianism put down roots on India's southern and western coasts.[32] Armies from Central Asia intermittently overran India's plains,[33] eventually establishing the Delhi sultanate, and drawing northern India into the cosmopolitan networks of medieval Islam.[34] In the 15th century, the Vijayanagara Empire created a long-lasting composite Hindu culture in south India.[35] In the Punjab, Sikhism emerged, rejecting institutionalized religion.[36] The Mughal empire, in 1526, ushered in two centuries of relative peace,[37] leaving a legacy of luminous architecture.[f][38] Gradually expanding rule of the British East India Company followed, turning India into a colonial economy, but also consolidating its sovereignty.[39] British Crown rule began in 1858. The rights promised to Indians were granted slowly,[40] but technological changes were introduced, and ideas of education, modernity and the public life took root.[41] A pioneering and influential nationalist movement emerged,[42] which was noted for nonviolent resistance and led India to its independence in 1947."""

words = text.lower().split()

shuffledwords = words
random.shuffle(shuffledwords)

stop = int(len(shuffledwords) * .1)

text.lower().split()[:stop]

['india',
 '(official',
 'name:',
 'the',
 'republic',
 'of',
 'india;[19]',
 'hindi:',
 'bhārat',
 'gaṇarājya)',
 'is',
 'a',
 'country',
 'in',
 'south',
 'asia.',
 'it',
 'is',
 'the',
 'seventh-largest',
 'country',
 'by',
 'area,',
 'the',
 'second-most',
 'populous',
 'country,',
 'and',
 'the',
 'most',
 'populous',
 'democracy',
 'in',
 'the',
 'world.',
 'bounded',
 'by',
 'the',
 'indian',
 'ocean',
 'on',
 'the',
 'south,',
 'the',
 'arabian',
 'sea']

shuffledwords[:stop]

['era',
 'the',
 'the',
 'bce.[22]',
 'river',
 'isolation',
 'in',
 'as',
 'their',
 'coasts.[32]',
 'sri',
 'suffused',
 'indus',
 'the',
 'india',
 'to',
 'in',
 'and',
 'christianity,',
 'india',
 'but',
 'religious',
 'diffused',
 'were',
 'the',
 'archaic',
 'and',
 'indian',
 'to',
 'north;',
 'jainism',
 'root.[41]',
 'human',
 'india',
 'by',
 'caste',
 'southeast',
 'valley',
 'the',
 'vicinity',
 'british',
 'an',
 'had',
 'rule',
 'colonial',
 'independence']

base = 0
while True:
    if base == 1000:
        break
    else:
        base += 1
        print(base)

status = True
base = 0
while status:
    check = input("Do you want to continue? Say no to stop.")
    if check.lower() == 'no':
        print("bye!")
        break
    else:
        print("Let's hit it again!")

Do you want to continue? Say no to stop.no
bye!

status = True
base = 0
while status:
    check = input("Give me a number, say no to stop.")
    if check.lower() == 'no':
        print("bye!")
        break
    elif check.isnumeric():
        base += int(check)
    else:
        print("Let's hit it again!")

print(base)

Give me a number, say no to stop.hello
Let's hit it again!
Give me a number, say no to stop.10
Give me a number, say no to stop.10
Give me a number, say no to stop.20
Give me a number, say no to stop.21
Give me a number, say no to stop.no
bye!
61

import random

total = 0
count = 0

while total <= 100:
    total += random.randint(1,10)
    count += 1
#     print(total)

print("the final total is", total, "and it took", count, "trials to get there")
print("the mean number generated was", total/count)

the final total is 103 and it took 18 trials to get there
the mean number generated was 5.722222222222222

test = {'a': [1, 2]}

test['a'].append(10)

test['b'] = [10,20]

test

{'a': [1, 2, 10], 'b': [10, 20]}

test['b'] = [100, 200]

test

{'a': [1, 2, 10], 'b': [100, 200]}

text = "India (official name: the Republic of India;[19] Hindi: Bhārat Gaṇarājya) is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west;[d] China, Nepal, and Bhutan to the north; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives; its Andaman and Nicobar Islands share a maritime border with Thailand and Indonesia."

words = text.lower().split()

counts = {}

for word in words:
    if word not in counts:
        counts[word] = 1
    else:
        counts[word] += 1

counts

{'india': 2,
 '(official': 1,
 'name:': 1,
 'the': 17,
 'republic': 1,
 'of': 3,
 'india;[19]': 1,
 'hindi:': 1,
 'bhārat': 1,
 'gaṇarājya)': 1,
 'is': 3,
 'a': 2,
 'country': 2,
 'in': 4,
 'south': 1,
 'asia.': 1,
 'it': 2,
 'seventh-largest': 1,
 'by': 2,
 'area,': 1,
 'second-most': 1,
 'populous': 2,
 'country,': 1,
 'and': 8,
 'most': 1,
 'democracy': 1,
 'world.': 1,
 'bounded': 1,
 'indian': 2,
 'ocean': 1,
 'on': 3,
 'south,': 1,
 'arabian': 1,
 'sea': 1,
 'southwest,': 1,
 'bay': 1,
 'bengal': 1,
 'southeast,': 1,
 'shares': 1,
 'land': 1,
 'borders': 1,
 'with': 2,
 'pakistan': 1,
 'to': 3,
 'west;[d]': 1,
 'china,': 1,
 'nepal,': 1,
 'bhutan': 1,
 'north;': 1,
 'bangladesh': 1,
 'myanmar': 1,
 'east.': 1,
 'ocean,': 1,
 'vicinity': 1,
 'sri': 1,
 'lanka': 1,
 'maldives;': 1,
 'its': 1,
 'andaman': 1,
 'nicobar': 1,
 'islands': 1,
 'share': 1,
 'maritime': 1,
 'border': 1,
 'thailand': 1,
 'indonesia.': 1}

wordcats = {'<=3': [], '4-6': [], '7+': []}

for word in words:
    l = len(word)
    if l <=3:
        wordcats['<=3'].append(word)
    elif l <=6:
        wordcats['4-6'].append(word)
    else:
        wordcats['7+'].append(word)
print(wordcats)

{'<=3': ['the', 'of', 'is', 'a', 'in', 'it', 'is', 'the', 'by', 'the', 'and', 'the', 'in', 'the', 'by', 'the', 'on', 'the', 'the', 'sea', 'on', 'the', 'and', 'the', 'bay', 'of', 'on', 'the', 'it', 'to', 'the', 'and', 'to', 'the', 'and', 'and', 'to', 'the', 'in', 'the', 'is', 'in', 'the', 'of', 'sri', 'and', 'the', 'its', 'and', 'a', 'and'], '4-6': ['india', 'name:', 'hindi:', 'bhārat', 'south', 'asia.', 'area,', 'most', 'world.', 'indian', 'ocean', 'south,', 'bengal', 'shares', 'land', 'with', 'china,', 'nepal,', 'bhutan', 'north;', 'east.', 'indian', 'ocean,', 'india', 'lanka', 'share', 'border', 'with'], '7+': ['(official', 'republic', 'india;[19]', 'gaṇarājya)', 'country', 'seventh-largest', 'country', 'second-most', 'populous', 'country,', 'populous', 'democracy', 'bounded', 'arabian', 'southwest,', 'southeast,', 'borders', 'pakistan', 'west;[d]', 'bangladesh', 'myanmar', 'vicinity', 'maldives;', 'andaman', 'nicobar', 'islands', 'maritime', 'thailand', 'indonesia.']}

for key, value in wordcats.items():
    print(key, len(value))

<=3 51
4-6 28
7+ 29

for countcat, listofwords in wordcats.items():
    print(countcat, len(listofwords))

<=3 51
4-6 28
7+ 29

[return_this for this in sequence]

sen = 'the quick brown dog jumps over the lazy dog'.split()

sen

['the', 'quick', 'brown', 'dog', 'jumps', 'over', 'the', 'lazy', 'dog']

[w.title() for w in sen]

['The', 'Quick', 'Brown', 'Dog', 'Jumps', 'Over', 'The', 'Lazy', 'Dog']

[len(w) for w in sen]

[3, 5, 5, 3, 5, 4, 3, 4, 3]

result = []

for w in sen:
    result.append(len(w))

result

[3, 5, 5, 3, 5, 4, 3, 4, 3]

[w for w in sen if len(w) <=3]

['the', 'dog', 'the', 'dog']

{key: value for key, value in dict.items()}

{key: len(value) for key, value in wordcats.items()}

{'<=3': 51, '4-6': 28, '7+': 29}

sen

['the', 'quick', 'brown', 'dog', 'jumps', 'over', 'the', 'lazy', 'dog']

{w: len(w) for w in sen}

{'the': 3, 'quick': 5, 'brown': 5, 'dog': 3, 'jumps': 5, 'over': 4, 'lazy': 4}

b = lambda x, y: x + y

sorted(counts, key = lambda item: counts[item], reverse = True)

['the',
 'and',
 'in',
 'of',
 'is',
 'on',
 'to',
 'india',
 'a',
 'country',
 'it',
 'by',
 'populous',
 'indian',
 'with',
 '(official',
 'name:',
 'republic',
 'india;[19]',
 'hindi:',
 'bhārat',
 'gaṇarājya)',
 'south',
 'asia.',
 'seventh-largest',
 'area,',
 'second-most',
 'country,',
 'most',
 'democracy',
 'world.',
 'bounded',
 'ocean',
 'south,',
 'arabian',
 'sea',
 'southwest,',
 'bay',
 'bengal',
 'southeast,',
 'shares',
 'land',
 'borders',
 'pakistan',
 'west;[d]',
 'china,',
 'nepal,',
 'bhutan',
 'north;',
 'bangladesh',
 'myanmar',
 'east.',
 'ocean,',
 'vicinity',
 'sri',
 'lanka',
 'maldives;',
 'its',
 'andaman',
 'nicobar',
 'islands',
 'share',
 'maritime',
 'border',
 'thailand',
 'indonesia.']

def sortme(pair):
    return pair[1]

sorted(counts.items(), key = sortme, reverse = True)

[('the', 17),
 ('and', 8),
 ('in', 4),
 ('of', 3),
 ('is', 3),
 ('on', 3),
 ('to', 3),
 ('india', 2),
 ('a', 2),
 ('country', 2),
 ('it', 2),
 ('by', 2),
 ('populous', 2),
 ('indian', 2),
 ('with', 2),
 ('(official', 1),
 ('name:', 1),
 ('republic', 1),
 ('india;[19]', 1),
 ('hindi:', 1),
 ('bhārat', 1),
 ('gaṇarājya)', 1),
 ('south', 1),
 ('asia.', 1),
 ('seventh-largest', 1),
 ('area,', 1),
 ('second-most', 1),
 ('country,', 1),
 ('most', 1),
 ('democracy', 1),
 ('world.', 1),
 ('bounded', 1),
 ('ocean', 1),
 ('south,', 1),
 ('arabian', 1),
 ('sea', 1),
 ('southwest,', 1),
 ('bay', 1),
 ('bengal', 1),
 ('southeast,', 1),
 ('shares', 1),
 ('land', 1),
 ('borders', 1),
 ('pakistan', 1),
 ('west;[d]', 1),
 ('china,', 1),
 ('nepal,', 1),
 ('bhutan', 1),
 ('north;', 1),
 ('bangladesh', 1),
 ('myanmar', 1),
 ('east.', 1),
 ('ocean,', 1),
 ('vicinity', 1),
 ('sri', 1),
 ('lanka', 1),
 ('maldives;', 1),
 ('its', 1),
 ('andaman', 1),
 ('nicobar', 1),
 ('islands', 1),
 ('share', 1),
 ('maritime', 1),
 ('border', 1),
 ('thailand', 1),
 ('indonesia.', 1)]

PreviousWeek 1 class demo NextWeek 3 class demo

Last updated 5 years ago

Was this helpful?