Level 5 : Which of the following is not a valid namespace?

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