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Strings in Depth: Python: Uncharted

Courses PythonStrings in Depth

Strings in Depth

Search, normalize, slice, split, rebuild, and craft Python text that holds up under real-world input.

Python
Unit 9 of 20
20 lessons
175 min
420 XP

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Lessons

20 total

1Text Is EverywhereRecognize strings as ordered text used throughout everyday apps.InteractiveConcept6 min20 XPOpen
2Find InsideSearch one subject line with in, find, startswith, and endswith.CodeConcept8 min20 XPOpen
3Slices of TextExtract area-code text with forward, negative, and stepped slices.CodeConcept8 min20 XPOpen
4Replace the WordsRepair every occurrence of a typo with replace.CodeConcept8 min20 XPOpen
5Tidy the InputNormalize a messy form entry with strip and lower.CodeConcept7 min20 XPOpen
6Strings Never ChangeContrast a discarded method result with a captured new string.CodeConcept7 min20 XPOpen
7Split into PiecesSplit text on spaces and commas to create useful lists.CodeConcept8 min20 XPOpen
8Join Them BackSplit a path, transform its pieces, and join them into a breadcrumb.CodeConcept9 min20 XPOpen
9Split Edge CasesPredict how Python split handles empty pieces and runs of whitespace.InteractiveConcept8 min20 XPOpen
10Letter by LetterLoop through a string and count its vowel characters.CodeConcept9 min20 XPOpen
11Mirror WritingReverse a string manually with a backward loop.CodeConcept9 min20 XPOpen
12Pad to AlignUse ljust and rjust to align labels and amounts in tidy rows.CodeConcept8 min20 XPOpen
13Multiline MasterpieceBuild an exact multi-line receipt with a triple-quoted f-string.CodeConcept8 min20 XPOpen
14Name-Cleaning PipelineOrder text-cleaning stages so each prepares useful input for the next.InteractiveConcept7 min20 XPOpen
15Initials MachineConvert a full name into uppercase initials with a reusable function.CodePractice10 min20 XPOpen
16Word CounterCount words robustly across empty and irregularly spaced text.CodePractice10 min20 XPOpen
17Secret NotesEncode lowercase letters by shifting each one forward with wraparound.CodePractice11 min20 XPOpen
18Username RulesValidate username length, allowed characters, and absence of spaces.CodePractice11 min20 XPOpen
19Title Case MachineSplit, capitalize, and join text into a consistent title.CodePractice11 min20 XPOpen
20Strings Mastery CheckCombine search, transformation, splitting, joining, and f-string craft in one formatter.CodeMastery check12 min40 XPOpen

Dictionaries Tuples, Sets, and Unpacking