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Python

As explained in Data Without Labels

Python is a general-purpose, high-level programming language widely used for software development, data analysis, and machine learning.

Python is a general-purpose, high-level language used here for data analysis and machine learning, with reproducible workflows built in Jupyter Notebook. section 1.1 section 1.0

Review sentiment analysis

A telecom operator can collect product reviews, ratings, titles, authors, dates, bodies, and helpfulness votes, then clean review text and estimate whether customer sentiment is positive, negative, or neutral. Comparing star ratings with polarity can expose disagreements between numerical ratings and written feedback. section 7.15

#### Loading all the required libraries here
from lxml import html  
import requests
import pandas as pd
from nltk.corpus import stopwords
from textblob import TextBlob
import matplotlib.pyplot as plt
import sys
import numpy as np
import pandas as pd
import matplotlib
import matplotlib.pyplot as plt
import sklearn
import scikitplot as skplt
import nltk
#to ignore warnings
import warnings
warnings.filterwarnings("ignore")
nltk.download('stopwords')
nltk.download('punkt')
nltk.download('wordnet')

The library setup shows the Python ecosystem used for scraping, tabular analysis, natural-language processing, visualization, and machine learning. section 7.15

How Data Without Labels covers it

How deep it goes
Walks through data preparation, text processing, sentiment scoring, visualization, and interpretation, without developing Python language internals.
Examples
Demonstrates Python through telecom and product-review analysis using pandas, NLTK, TextBlob, matplotlib, and scikit-learn.
What it assumes
Assumes basic programming readiness while supplying step-by-step explanations, comments, library setup, and guidance for installing Python and Jupyter Notebook.
What you can do after
Build reproducible Python workflows that load, clean, analyze, visualize, and score review data for machine-learning use cases.
How it connects
Connects Python with data analysis, machine learning, unsupervised learning, natural-language processing, sentiment analysis, and Jupyter Notebook.

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This explainer was generated by Manning's knowledge graph from the text of Data Without Labels. The section links point to the parts of the book it draws on.