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

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