Level 1 : What does this dictionary comprehension return?


d = {x: x**2 for x in range(3)}
print(d)

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