Python String Append
Practical, efficient ways to append string in Python: why + can be slow, examples using list+join, *, StringIO, and timeit tips.
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3 min read
Python String replace()
Guide to python replace string using str.replace: syntax, examples (count parameter), replacing delimiters and characters, and when to use re.sub vs str.replace.
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3 min read
Python String encode() decode()
Guide to python encode decode: examples for str.encode() and bytes.decode(), utf-8 and latin-1 usage, errors parameter (strict, ignore, replace, xmlcharrefreplace), and practical patterns.
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3 min read
Python print()
Clear guide to using python print(): syntax, parameters (sep, end, file, flush), examples for console and file output, and formatting tips.
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3 min read
Pandas read_excel() - Reading Excel File in Python
Practical guide to using pandas read_excel to import Excel into pandas DataFrame with examples for sheet selection, usecols, headers, skiprows/nrows, parse_dates, openpyxl engine, and exporting.
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3 min read
How To Work with Unicode in Python
Practical guide to unicode in python: code points, python utf-8 encoding/decoding, unicodedata normalization (NFC/NFD/NFKC/NFKD), and handling UnicodeEncodeError and UnicodeDecodeError.
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3 min read
Understanding Class and Instance Variables in Python 3
Explains python class vs instance variables with examples, pitfalls (mutable class variables, shadowing), and best practices.
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3 min read
How To Format Text in Python 3
Clear, original guide to python string formatting: literals, quotes, escape sequences (\n, \t, \\), triple quotes, raw strings (r""), and examples for formatting text in Python 3.
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3 min read