(context, sequence)
return added_types
Checks if a `Array` has "add" (append, insert, extend) statements:

    >>> a = [""]
    >>> a.append(1)
Checks if a `Array` has "add" (append, insert, extend) statements:
Checks if a Array has add ( append insert extend ) statements :
def _check_array_additions(context, sequence):
    """
    Checks if a `Array` has "add" (append, insert, extend) statements:

    >>> a = [""]
    >>> a.append(1)
    """
    from jedi.evaluate import arguments

    debug.dbg('Dynamic array search for %s' % sequence, color='MAGENTA')
    module_context = context.get_root_context()
    if not settings.dynamic_array_additions or isinstance(module_context, compiled.CompiledObject):
        debug.dbg('Dynamic array search aborted.', color='MAGENTA')
        return ContextSet()

    def find_additions(context, arglist, add_name):
        params = list(arguments.TreeArguments(context.evaluator, context, arglist).unpack())
        result = set()
        if add_name in ['insert']:
            params = params[1:]
        if add_name in ['append', 'add', 'insert']:
            for key, whatever in params:
                result.add(whatever)
        elif add_name in ['extend', 'update']:
            for key, lazy_context in params:
                result |= set(lazy_context.infer().iterate())
        return result

    temp_param_add, settings.dynamic_params_for_other_modules = \
        settings.dynamic_params_for_other_modules, False

    is_list = sequence.name.string_name == 'list'
    search_names = (['append', 'extend', 'insert'] if is_list else ['add', 'update'])

    added_types = set()
    for add_name in search_names:
        try:
            possible_names = module_context.tree_node.get_used_names()[add_name]
        except KeyError:
            continue
        else:
            for name in possible_names:
                context_node = context.tree_node
                if not (context_node.start_pos < name.start_pos < context_node.end_pos):
                    continue
                trailer = name.parent
                power = trailer.parent
                trailer_pos = power.children.index(trailer)
                try:
                    execution_trailer = power.children[trailer_pos + 1]
                except IndexError:
                    continue
                else:
                    if execution_trailer.type != 'trailer' \
                            or execution_trailer.children[0] != '(' \
                            or execution_trailer.children[1] == ')':
                        continue

                random_context = context.create_context(name)

                with recursion.execution_allowed(context.evaluator, power) as allowed:
                    if allowed:
                        found = evaluate_call_of_leaf(
                            random_context,
                            name,
                            cut_own_trailer=True
                        )
                        if sequence in found:
                            # The arrays match. Now add the results
                            added_types |= find_additions(
                                random_context,
                                execution_trailer.children[1],
                                add_name
                            )

    # reset settings
    settings.dynamic_params_for_other_modules = temp_param_add
    debug.dbg('Dynamic array result %s' % added_types, color='MAGENTA')
    return added_types
def _check_array_additions ( context , sequence ) : from jedi . evaluate import arguments debug . dbg ( 'Dynamic array search for %s' % sequence , color = 'MAGENTA' ) module_context = context . get_root_context ( ) if not settings . dynamic_array_additions or isinstance ( module_context , compiled . CompiledObject ) : debug . dbg ( 'Dynamic array search aborted.' , color = 'MAGENTA' ) return ContextSet ( ) def find_additions ( context , arglist , add_name ) : params = list ( arguments . TreeArguments ( context . evaluator , context , arglist ) . unpack ( ) ) result = set ( ) if add_name in [ 'insert' ] : params = params [ 1 : ] if add_name in [ 'append' , 'add' , 'insert' ] : for key , whatever in params : result . add ( whatever ) elif add_name in [ 'extend' , 'update' ] : for key , lazy_context in params : result |= set ( lazy_context . infer ( ) . iterate ( ) ) return result temp_param_add , settings . dynamic_params_for_other_modules = settings . dynamic_params_for_other_modules , False is_list = sequence . name . string_name == 'list' search_names = ( [ 'append' , 'extend' , 'insert' ] if is_list else [ 'add' , 'update' ] ) added_types = set ( ) for add_name in search_names : try : possible_names = module_context . tree_node . get_used_names ( ) [ add_name ] except KeyError : continue else : for name in possible_names : context_node = context . tree_node if not ( context_node . start_pos < name . start_pos < context_node . end_pos ) : continue trailer = name . parent power = trailer . parent trailer_pos = power . children . index ( trailer ) try : execution_trailer = power . children [ trailer_pos + 1 ] except IndexError : continue else : if execution_trailer . type != 'trailer' or execution_trailer . children [ 0 ] != '(' or execution_trailer . children [ 1 ] == ')' : continue random_context = context . create_context ( name ) with recursion . execution_allowed ( context . evaluator , power ) as allowed : if allowed : found = evaluate_call_of_leaf ( random_context , name , cut_own_trailer = True ) if sequence in found : # The arrays match. Now add the results added_types |= find_additions ( random_context , execution_trailer . children [ 1 ] , add_name ) # reset settings settings . dynamic_params_for_other_modules = temp_param_add debug . dbg ( 'Dynamic array result %s' % added_types , color = 'MAGENTA' ) return added_types