Level 1 : What is below code output?


x = [1, 2, 3] 
x.append([4, 5])

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