Level 3 : What will be the value of ‘result’ in following Python program?


list1 = [1,2,3,4]
list2 = [2,4,5,6]
list3 = [2,6,7,8]
result = list()
result.extend(i for i in list1 if i not in (list2+list3) and i not in result)
result.extend(i for i in list2 if i not in (list1+list3) and i not in result)
result.extend(i for i in list3 if i not in (list1+list2) and i not in result)

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