Python libraries

Content and key concepts

Import only what makes the solution clearer: compute through
math
, count over
Counter
, look through
re
and read the data formats without a manual review of the lines.
Python · standard library
10 to 11 grades
EEG: A tool, not a single topic
01
Headway
Three topics separate the basic examination skill from the useful expansion of the horizon, and at the end there's a trainer and a lab with finished working templates.
42.1 Imports and numbers
Imports and mathematical instruments
math
, accuracy, combinatorics and the rule: imports explain the code, not hide its meaning.
Open topic
42.2 Structures and flow
Algorithmic instruments
collections
,
itertools
,
functools
,
heapq
and
bisect
.
Open topic
42.3 · text and data
Text, data and virtual files
re
,
fnmatch
,
csv
,
json
and a safe review of format.
Open topic
42.4 Practice
Workshop
Diagnostic issues and programme challenges with additional tests.
Training ♪
42.5. Monitoring
Examination
Short version with timer: select appropriate tool and write a solution.
Open option
42.6 · laboratory
Library Laboratory
Change the finished templates and run them with the virtual
input.txt
.
Open the lab.
02
Do not confuse level and benefit
EEG: What is really being tested
The test evaluates algorithm, input-output, cycles, lines, lists and file processing. Knowledge of the library helps to write shorter and more reliable, but is not in itself a separate EGE number. Always read the condition and limits of the environment.
Extension: What is worth mastering
itertools
,
heapq
, regular expressions, CSV and JSON are often needed in real projects, olympics, and data analysis, which are studied here as an enrichment of tools, not as a learning command list.
03
Three questions before import
What kind of operation is needed: number, line, search, file format or text template?
Is there a clear solution to Python's built-in tools, and will imports become clearer?
Does the environment guarantee the accessibility of this module? The side packages are not part of the standard library.
04
Alt Library Manager
Form the operation, and the dispatcher will show the appropriate module, minimum import, and its boundary.
ALT · ROUTER
Operation . module . clear code
REQUEST
MARCHRUE