@@ -13,7 +13,7 @@ Contents
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**   ;  ;  ; ** ** 3. Syntax:** **   ;  ;  ;  ;  ;  ;  ;  ;  ; ** ** [ ` Args ` ] ( #arguments ) ** __ ,__ ** [ ` Inline ` ] ( #inline ) ** __ ,__ ** [ ` Closure ` ] ( #closure ) ** __ ,__ ** [ ` Decorator ` ] ( #decorator ) ** __ ,__ ** [ ` Class ` ] ( #class ) ** __ ,__ ** [ ` Duck_Types ` ] ( #duck-types ) ** __ ,__ ** [ ` Enum ` ] ( #enum ) ** __ ,__ ** [ ` Exceptions ` ] ( #exceptions ) ** __ .__
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**   ;  ;  ; ** ** 4. System:** **   ;  ;  ;  ;  ;  ;  ;  ; ** ** [ ` Print ` ] ( #print ) ** __ ,__ ** [ ` Input ` ] ( #input ) ** __ ,__ ** [ ` Command_Line_Arguments ` ] ( #command-line-arguments ) ** __ ,__ ** [ ` Open ` ] ( #open ) ** __ ,__ ** [ ` Path ` ] ( #path ) ** __ ,__ ** [ ` Command_Execution ` ] ( #oscommands ) ** __ .__
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**   ;  ;  ; ** ** 5. Data:** **   ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ; ** ** [ ` JSON ` ] ( #json ) ** __ ,__ ** [ ` Pickle ` ] ( #pickle ) ** __ ,__ ** [ ` CSV ` ] ( #csv ) ** __ ,__ ** [ ` SQLite ` ] ( #sqlite ) ** __ ,__ ** [ ` Bytes ` ] ( #bytes ) ** __ ,__ ** [ ` Struct ` ] ( #struct ) ** __ ,__ ** [ ` Array ` ] ( #array ) ** __ ,__ ** [ ` MemoryView ` ] ( #memory-view ) ** __ ,__ ** [ ` Deque ` ] ( #deque ) ** __ .__
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- **   ;  ;  ; ** ** 6. Advanced:** **   ;  ;  ; ** ** [ ` Threading ` ] ( #threading ) ** __ ,__ ** [ ` Operator ` ] ( #operator ) ** __ ,__ ** [ ` Introspection ` ] ( #introspection ) ** __ ,__ ** [ ` Metaprograming ` ] ( #metaprograming ) ** __ ,__ ** [ ` Eval ` ] ( #eval ) ** __ ,__ ** [ ` Coroutine ` ] ( #coroutines ) ** __ .__
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+ **   ;  ;  ; ** ** 6. Advanced:** **   ;  ;  ; ** ** [ ` Threading ` ] ( #threading ) ** __ ,__ ** [ ` Operator ` ] ( #operator ) ** __ ,__ ** [ ` Introspection ` ] ( #introspection ) ** __ ,__ ** [ ` Metaprograming ` ] ( #metaprograming ) ** __ ,__ ** [ ` Eval ` ] ( #eval ) ** __ ,__ ** [ ` Coroutines ` ] ( #coroutines ) ** __ .__
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**   ;  ;  ; ** ** 7. Libraries:** **   ;  ;  ;  ;  ;  ; ** ** [ ` Progress_Bar ` ] ( #progress-bar ) ** __ ,__ ** [ ` Plot ` ] ( #plot ) ** __ ,__ ** [ ` Table ` ] ( #table ) ** __ ,__ ** [ ` Curses ` ] ( #curses ) ** __ ,__ ** [ ` Logging ` ] ( #logging ) ** __ ,__ ** [ ` Scraping ` ] ( #scraping ) ** __ ,__ ** [ ` Web ` ] ( #web ) ** __ ,__ ** [ ` Profile ` ] ( #profiling ) ** __ ,__
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**   ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ; ** ** [ ` NumPy ` ] ( #numpy ) ** __ ,__ ** [ ` Image ` ] ( #image ) ** __ ,__ ** [ ` Audio ` ] ( #audio ) ** __ ,__ ** [ ` Pygame ` ] ( #pygame ) ** __ .__
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@@ -50,7 +50,7 @@ elementwise_sum = [sum(pair) for pair in zip(list_a, list_b)]
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sorted_by_second = sorted (< collection> , key = lambda el : el[1 ])
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sorted_by_both = sorted (< collection> , key = lambda el : (el[1 ], el[0 ]))
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flatter_list = list (itertools.chain.from_iterable(< list > ))
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- product_of_elems = functools.reduce(lambda out , x : out * x , < collection> )
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+ product_of_elems = functools.reduce(lambda out , el : out * el , < collection> )
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list_of_chars = list (< str > )
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```
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* ** Module [ operator] ( #operator ) provides functions itemgetter() and mul() that offer the same functionality as lambda expressions above.**
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