Level 9 : What is a Python decorator and its use in functions?

Author: IndraD | Tags: decorator | 1859+ Python FAQs | Share
invalid-list | lambda-functions | escape-operator | input-function | counter | intering | asyncio | directory-operations | aggregating-data-with-functools.reduce() | logical-operator | operator | built-in-modules | list-method | async | data_structure | basic | thread-safe-data-structures-(queue.queue) | default-mutable-argument | error-handling | tuples | zip | overriding-methods | multiple-inheritance | precedence-and-associativity | functions | software-design | list-comprehensions | lambda-function | identity-operators-(is,-is-not) | higher-order-function | python-django | class-decorators | list-comprehension | conditional-statements | nested-loop | python-operators | using-lists-as-stacks | joining-and-merging-dataframes | iterators | while-loop | iterable | string-method | sys | thread | working-with-temporary-files-using-tempfile | data-type | reading:-read(),-readline(),-readlines() | key-value-pairs | docstring | input | mapping-function | module | while-and-for-loop | string-method | list-comprehension | virtual-environment | memory | implementation | yield | parameter | else | sets | lambda | filtering-and-indexing | while-loops | literal-characters-and-special-characters | complex-number | string-formatting | error-handling | python | debugging | raise-statement | join | math | built-in-function | difference-between-threads-and-processes | version | data-structures-in-python | creating-custom-modules | identity-operator | managing-directories-with-os-and-shutil | namespace | identifier | typeerror | map-function | installation | using-assertions-(assertequal,-assertraises) | using-join()-and-is_alive()-methods | global-variable | slice | assert | syntax | overflow | data-structures | namedtuple | command-line-parsing | string-formatting | append | indexing:-loc-vs-iloc | filter | generators-in-python | center | access-modifier | mutable | heap-memory | generators | unit-testing | statement | sorting | data-structure | descriptors | reading-and-writing-files | dataframe-and-series-objects | list-methods-and-slicing | list-operation | split | list-join | set | file-handling | string-slicing | class-and-instance-variable | bitwise-operator | library | formatting-with-strftime | binary-operation | interpreter | string | destructor | immutable-data-type | data-types | identity-operator | boolean-masking | class-and-object | attribute | collection | context-manager | precedence | floating-point-precision | id-function | logical-operation | multithreading | exception-handling | creating-and-starting-threads | enumerate() | file-handling | scientific-notation | lambdas | introduction-to-threads | method | integer | for | control-flow | numpy | fabs-function | time-series-with-pandas | floats | stack | introduction-to-python | immutability | recursion | working-with-binary-files-(rb,-wb) | print-statement | bitwise-operator | list | bitwise | round-function | data-structure | mysql | recurssion | sorting-and-ranking | gil | indexing | type-conversion-and-casting | dictionary-comprehensions | assignment-operator | functional-programming | threading | integers | list-indexing | pandas | postfix | syntax-error | dictionary-methods | math-copysign | sorted | import-method | introduction-to-multiprocessing | classes | global-variable | tuple | generator | anchors-(^,-$) | decorator | operators | sys-module | dictionaries | init | sum-function | choice | dicts | inheritance | magic-method | version-check | memory-management | slicing | regex | max-min | using-else-and-finally | deep-copy | string-concatenation | keyword | zfill-function | expression | built-in | print | virtual-environment | asyncio-module | exception | collections | python-module | int | design-principle | regular-expression | default-arguments | datetime.date,-datetime.time,-datetime.datetime | head-and-tail | application | variable | oops | using-yield-in-functions | handling-missing-values-(fillna,-dropna) | comment | pickling--unpickling | counter-function | dictionary | def | data-type | decimal | using-the-threading-module | string-methods | iterator | global-keyword | operator-overloading | numeric | polymorphism | encoding | __future__ | list-slicing | touples | random | complex | error | loop-control-statements | inherit | datetime | input-function | comparison | zip-function | using-map()-for-transformations | using-os-and-pathlib-modules | operations | global | static-method | single-inheritance | logical-operator | staticmethod | thread-synchronization | assignment-operators | constructor | loop-control | method-overloading | indentation | file_handling | else-statement | turtle | strings | call | __all__-attribute | arbitrary-arguments-(*args,-**kwargs) | file | matrix-list-comprehension | round | list-mutation | opening-files-(open()) | advanced-file-operations | string-manipulation | filter-function | test-discovery | factorial-function | regular-expressions | class | python_version | set-operation | conversion | functional-programming | feature | copy | walking-through-directories-using-os.walk() | exception-handling | tuple-unpacking | benefit | frozenset | control-statement | formal-and-actual-parameter | boolean | defining-functions | working-with-file-paths | function-and-scope | boolean-and-non-boolean | arithmetic-expression | encapsulation | matrix | exponentiation | return-statement | sum() | __init_subclass__ | shallow-copy | with-statement | format | arithmetic-operation | function-argument | syntax-error | mathematics | control-flow | array | multiple-inheritance | expand-tab | membership-operators-(in,-not-in) | goto-function | conditional-statement | type-conversion | min-max-function | function | string-iteration | mathematical-function | type-conversion | class-and-inheritance | binary | built-in-function | conditional-statement | compute | multiple-except-blocks | string-slicing | booleans | comprehension | working-with-dates-and-times | while-else-loop | reading-and-writing-large-files-efficiently | methods | list-vs-tuple | datatype | data-type-conversions | swapping | operand | logical-operators | rollback | update | tuple-methods | why-use-multiprocessing-over-threading?-(gil) | type_conversion | pass | syntaxerror | writing:-write(),-writelines() | pep | oop | python-syntax-and-structure | range | objects | pseudocode | python-repl | match | object-attribute | loop | odd-number | operator-and | min-function | operator-or | matplotlib | lists | list,-set,-and-dictionary-comprehensions | name-mangling | multiprocessing | parsing-with-strptime | python-history | package-management | quantifiers-(*,-+,-?,-{}) | raise | condition | loops | random-function ...