[Solved] take elements of dictionary to create another dictionary

You could do this: a = {‘vladimirputin’: {‘milk’: 2.87, ‘parsley’: 1.33, ‘bread’: 0.66}, ‘barakobama’:{‘parsley’: 0.76, ‘sugar’: 1.98, ‘crisps’: 1.09, ‘potatoes’: 2.67, ‘cereal’: 9.21}} b = {} for prez in a: for food in a[prez]: if food not in b: b[food] = {prez: a[prez][food]} else: b[food][prez] = a[prez][food] This gives: {‘bread’: {‘vladimirputin’: 0.66}, ‘cereal’: {‘barakobama’: 9.21}, … Read more

[Solved] PHP – File to Associative Array with 1 key and two values attached

Try this // file path $file=”orderdata.txt”; // REMEMBER TO MENTION THE CORRECT FILE WITH EXTENSION // open the file and get the resource handle with errors suppressed $handle = @fopen($file,’r’); // DONT USE @ while at development since it will suppress errors // array to hold our values $params = array(); if($handle) { // if … Read more

[Solved] Why do keys() and items() methods return different Boolean values for same key? (Python 3.6) [closed]

items() contains tuples, key-value pairs: >>> spam.items() dict_items([(‘name’, ‘Zophie’), (‘age’, 7)]) Your key is not such a tuple. It may be contained in one of the tuples, but in does not test for containment recursively. Either test for the correct key-value tuple: >>> (‘name’, ‘Zophie’) in spam.items() True or if you can’t get access to … Read more

[Solved] React: Warning each child in a list should have a unique key [duplicate]

It’s definitely an array key issue, but it seems you have unique alt attributes in each data set (array). <StyledHorizontalScrollList columns={columns}> {tunesTeasers.map(teaser => teaser.noTonieboxes ? ( <List key={teaser.alt} onClick={toggleModal}> <TeaserCard alt={teaser.alt} src={teaser.src} /> </List> ) : ( <StyledLink key={teaser.alt} to={teaser.link}> <TeaserCard alt={teaser.alt} src={teaser.src} /> </StyledLink> )} </StyledHorizontalScrollList> solved React: Warning each child in a list … Read more

[Solved] add data into primary key [duplicate]

The old way of doing this is a multi-step process: add the column which will be the primary key update the column enforce the primary key. Something like this: create sequence t23_id; alter table t23 add id number; update t23 set id = t23_id.nextval ; alter table t23 add constraint t23_pk primary key (id); In … Read more