How to delete an entry from a dictionary in Python?

Let’s learn how to delete an entry from a dictionary in Python. The most accurate or helpful solution is served by Stack Overflow.

There are ten answers to this question.

Best solution

Python delete entry from dictionary by value

I am trying to delete unwanted entries from a dictionary. The dictionary looks like: { "Id":101119 ,"entry1":50009987 ,"entry2":8 ,"entry3":4 } and my code is: import json value = 2 with open(path, 'r') as json_input: unfiltered = json.load(json_input) for row in unfiltered: id = row['Id'] if row[field] is None: del output[id] elif int(row[field]) != value: del output[id] However, I've got an error: KeyError: 101119 How can I fix it? Many thanks.

Answer:

You can't delete a key-value pair from a dictionary if you only know its value. One possible alternative...

ChangeMyName at Stack Overflow Mark as irrelevant Marked as irrelevant Undo

Other solutions

Working in Python, how can I delete items while iterating over a dictionary?

Got runtime error if call "del dict[key]" during iterating - RuntimeError: dictionary changed size during iteration

Answer:

for key,value in my_dict.items(): if key == "delete": my_dict.pop(key) this works because...

Joran Beasley at Quora Mark as irrelevant Marked as irrelevant Undo

How do I create a editable contact list with a menu system using python?

I've been given this as part of an assignment: Write a program to implements a simple contact list application. The program shall allow users to add, modify and delete entries from the contact lists. Each entry in the contact list consists of a name...

Answer:

If your knowledge of Python is limited then I recommend working through the excellent online Dive Into...

yugix24 at Yahoo! Answers Mark as irrelevant Marked as irrelevant Undo

In python the command "del m[k]" to delete an item in a dictionary seems like an odd grammatical construction doesn't it? Should it not have been "m[k].del" or something like that? What am I missing?

Answer:

No, it's not strange. Why would m[k] be in charge of deleting itself? Not to mention that "del...

Roberto Alsina at Quora Mark as irrelevant Marked as irrelevant Undo

How do I delete an entry in a custom dictionary in Word 2007?

Answer:

Open Microsoft Word 2007. Click the "Microsoft Office" button located in the top-left corner...

Answerbag Staff at Answerbag.com Mark as irrelevant Marked as irrelevant Undo

Is there a way to delete an entry in my iPhone's dictionary?

It has managed to learn some of my typos.

Answer:

I have now been in several Apple stores and asked this question often, including 3 appts with 'Geniuses...

Andrew Denny at Quora Mark as irrelevant Marked as irrelevant Undo

If you'll just point me in the right direction...

I have a question in two parts. If that's illegal, admin, please delete the last part. I'd like to hear suggestions for websites I should look at, and then advice on whether this is really how I should move forward with this. Hopefully, this is much...

Answer:

The internet always has room for more information. Just don't forget to mention your sources. Footnote...

segatakai at Ask.Metafilter.Com Mark as irrelevant Marked as irrelevant Undo

Python Calculator Help?

I'm creating a calculator and i ran into a problem. When the users enters an expression and hits equal. If they click on a number right after that, i want to delete the answer to the previous expression and insert the number. And let's say they want...

Answer:

I don't know how exactly you have your program designed, but I would assume you could just create a...

Skyler at Yahoo! Answers Mark as irrelevant Marked as irrelevant Undo

Can I delete the old title of a changed entry in the highlight post ?

The first, I post a entry with the title "Entry for November 01, 2007" and show highlight post at bottom of this entry. After some days, I change a title of this entry and show highlight post. Now, there are 2 title of this entry in the highlight...

Answer:

Sorry, the Y!360 team is the only people who can fix this issue and they are no longer fixing bugs ...

nhat linh at Yahoo! Answers Mark as irrelevant Marked as irrelevant Undo

I cannot delete mail when just one entry is left. Will not delete ALL the mail. Leaves only 1, and cannot del

When I have a lot of email,(yahoo) I cannot delete ALL of them. I have to leave 1 there,(unchecked for deletion) and then the others will all delete, leaving that one. Then, I cannot delete THAT one--- ever. So, I ALWAYS have to have at least 1 piece...

Answer:

why does this bother you, are you an obsesive compulsive

CindyLou at Yahoo! Answers Mark as irrelevant Marked as irrelevant Undo

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