Advertisements I have a table like: col1 col2 0 1 a 1 2 b 2 2 c 3 3 c 4 4 d I’d like rows to be grouped together if they have a matching value in col1 or col2. That is, I’d like something like this: > ( df .groupby(set(‘col1’, ‘col2’)) # Made-up syntax… Read More How to group by one column or another in pandas
Advertisements Basically I want that my for loop stops itself after a certain element in the list is being processed. Here is the code: vids = [ ‘https://www.itatv.com/ita_video.php?viewkey=626de171d928a’, ‘https://www.itatv.com/ita_video.php?viewkey=6050c75748399’, ‘https://www.itatv.com/ita_video.php?viewkey=6277dbe97910c’, ‘https://www.itatv.com/ita_video.php?viewkey=5d660515990ec&pkey=150469821’, ‘https://www.itatv.com/ita_video.php?viewkey=6201e028e3811’, ‘https://www.itatv.com/ita_video.php?viewkey=6201e028e3811’, ‘https://www.itatv.com/ita_video.php?viewkey=60dd6838ce483’, ] for v in vids: try: vids.remove(v) if ‘&pkey=’ in v: raise StopIteration except StopIteration: break print(vids) The output is: [… Read More Stop for loop iteration trough a list at a certain point
Advertisements so I have the list: [‘string_one’, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, ‘string_two’, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, ‘string_three’, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, ‘string_four’, nan, nan, nan, nan,… Read More How can I find the index of the next not NaN element in a python list
Advertisements I have a loop where I update a value that changes the view. In this example I want the updates to happen one at a time so you see it ripple across the row, but they all happen at once. struct AnimationQuestion: View { @State var colors = "🟪🟨🟧🟦🟥🟫⬛️🟩⬜️".map { String($0) } @State var… Read More How do I animate changes one at a time in SwiftUI on a button tap?
Advertisements In my current Django template I have two models in use, which are defined in my views.py as: ‘tasks’ : IndividualTask.objects.all(), ‘updates’ : TaskUpdate.objects.all(), I have set up signals so that when there is an update to a task, an update is created. Currently, I iterate through each task, then each of their updates… Read More How to limit the number of responses to my for loop to 3 in Django Templates?
Advertisements I have a string and I need to replace "e" with "x" one at a time. For e.g. x = "three" Then the expected output is: ("thrxe", "threx") and if I have 3 characters to replace, for e.g. y = "threee" Then the expected output will be ("thrxee", "threxe", "threex") I have tried this:… Read More replace string one by one in python
Advertisements In writing dataframe to Excel spreadsheet, I want the file to have no border on the first row and column width to be auto adjusted. With the old package xlwt and xlrd, I can read the file from Pandas produced, to a new file with no border on the header. But it’s .xls (not… Read More Dataframe to Excel, with no border formatting, and auto column width
Advertisements I am trying to transform two lists of equal length which contain key:value pairs into nested dictionaries. List look like list1 = [‘first_name’, ‘surname’, ‘BoB’, ‘Question_no’, ‘comment1’, ‘comment2’, ‘Question_no’, ‘comment1’, ‘comment2’] list2 = [‘John’, ‘Smith’, 10/10/1980, ‘Q1’, ‘some text’, ‘other text’, ‘Q2’, ‘different text’, ‘more text’] Current code for key in name_list: for value… Read More Two python lists to nested dictionaries repeating pattern
Advertisements I have the following lists of strings: my_list1 = [‘ If the display is not working ‘, "<xxx – tutorial section>", "tutorial section", ‘ display message appears. ‘] my_list2 = [‘ If the display is not working ‘, "tutorial section", "<xxx – tutorial section>", ‘ display message appears. ‘] How can I identify a… Read More How to remove a substring conditionally from a list of strings?
Advertisements I did a few modifications to the Bellman-Ford to get some data I need to compare but I can’t seem to be able to get some of the information I need from the return the PrintArr method, while it prints the ‘dist_list’ the return won’t take it nor am I being able to create… Read More Class method returns None