Level 9 : Which of the following is a valid Python variable name?

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