Level 1 : What will be the value of d[3] at the end?


d = {i: i * 2 for i in range(4)}
d.update({2: d.get(1, 0) + d.pop(3, 1)})

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