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HTTP statusPASSdownload_http_code = 200HTTP 200
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URLhttps://python-forum.io/thread-35162.html
Last Crawled2025-06-01 13:33:06 (10 months ago)
First Indexed2021-10-05 17:56:07 (4 years ago)
HTTP Status Code200
Meta TitleRemoving nan values from a dict
Meta DescriptionThe official dedicated python forum, I have this dict: Output:Please how can I remove the nan values? I have used my_dict.pop(nan) but it doesn't work since nan is not a string
Meta Canonicalnull
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>>> lst = [ 438.4 , 439.18 , 439.9 , 440.21999999999997 , 440.38 , 441.08000000000004 , nan, nan, nan, nan] Traceback (most recent call last): File "<interactive input>" , line 1 , in <module> NameError: name 'nan' is not defined >>> lst = [ 438.4 , 439.18 , 439.9 , 440.21999999999997 , 440.38 , 441.08000000000004 , nan, nan, nan, nan] >>> [x for x in lst if ~np.isnan(x)] [ 438.4 , 439.18 , 439.9 , 440.21999999999997 , 440.38 , 441.08000000000004 ]
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[![Python Forum](https://python-forum.io/images/tips/lys_th.png)](https://python-forum.io/index.php) [![Python Forum](https://python-forum.io/images/tips/lys_th.png)](https://python-forum.io/index.php) - [View Active Threads](https://python-forum.io/activethreads.php) - [View Today's Posts](https://python-forum.io/search.php?action=getdaily) - [Home](https://python-forum.io/index.php) - [Forums]() - [View New Posts](https://python-forum.io/search.php?action=getnew) - [View Today's Posts](https://python-forum.io/search.php?action=getdaily) - [My Discussions](https://python-forum.io/search.php?action=do_search&author=&matchusername=1&showresults=threads&postthread=1) - [Unanswered Posts](https://python-forum.io/search.php?action=unanswered) - [Unread Posts](https://python-forum.io/search.php?action=unreads) - [Active Threads](https://python-forum.io/activethreads.php?days=1&hours=0&mins=0&date=Now&order=descending&sort=num_posts&go=Go) - [Mark all forums read](https://python-forum.io/misc.php?action=markread&my_post_key=ba4b0f4a50d4f57dee24c0cb4fa97aa2) - [Staff List](https://python-forum.io/showteam.php) - [Member List](https://python-forum.io/memberlist.php) - [Help](https://python-forum.io/misc.php?action=help) - [Calendar](https://python-forum.io/calendar.php) - [Search](https://python-forum.io/search.php) - [Statistics](https://python-forum.io/stats.php) - [Interpreter](https://python-forum.io/misc.php?page=interpreter) - [IRC](https://python-forum.io/misc.php?page=chat) ##### Removing nan values from a dict - [Python Forum](https://python-forum.io/index.php) - [Python Coding](https://python-forum.io/forum-7.html) - [General Coding Help](https://python-forum.io/forum-8-page-237.html) **Thread Rating:** - 0 Vote(s) - 0 Average - [1](https://python-forum.io/ratethread.php?tid=35162&rating=1&my_post_key=ba4b0f4a50d4f57dee24c0cb4fa97aa2) - [2](https://python-forum.io/ratethread.php?tid=35162&rating=2&my_post_key=ba4b0f4a50d4f57dee24c0cb4fa97aa2) - [3](https://python-forum.io/ratethread.php?tid=35162&rating=3&my_post_key=ba4b0f4a50d4f57dee24c0cb4fa97aa2) - [4](https://python-forum.io/ratethread.php?tid=35162&rating=4&my_post_key=ba4b0f4a50d4f57dee24c0cb4fa97aa2) - [5](https://python-forum.io/ratethread.php?tid=35162&rating=5&my_post_key=ba4b0f4a50d4f57dee24c0cb4fa97aa2) | | | |---|---| | **[Thread Modes]()** **Removing nan values from a dict** | | | | | | 1 | `my_dict.pop(nan)` | | | | | 12345678 | `nan``=` `0` `mylist``=` `[``438.4``,``439.18``,``439.9``,``440.21999999999997``,``440.38``,``441.08000000000004``, nan, nan, nan, nan]` `for` `i``in` `range``(``len``(mylist)):` `    ``if` `i >``=` `6``:` `        ``mylist.pop()` `print``(mylist)` | | | | | 123456 | `>>> l` `[``438.4``,``439.18``,``439.9``,``440.21999999999997``,``440.38``,``441.08``, nan, nan, nan, nan]` `>>>``import` `math` `>>> newlist``=` `[x``for` `x``in` `l``if` `not` `math.isnan(x)]` `>>> newlist` `[``438.4``,``439.18``,``439.9``,``440.21999999999997``,``440.38``,``441.08``]` | | | | | 123456789101112 | `# Give error` `>>> lst``=` `[``438.4``,``439.18``,``439.9``,``440.21999999999997``,``440.38``,``441.08000000000004``, nan, nan, nan, nan]` `Traceback (most recent call last):` `  ``File` `"<interactive input>"``, line``1``,``in` `<module>` `NameError: name``'nan'` `is` `not` `defined` `>>>``import` `numpy as np` `>>>``from` `numpy``import` `nan``# Fix error` `>>>` `>>> lst``=` `[``438.4``,``439.18``,``439.9``,``440.21999999999997``,``440.38``,``441.08000000000004``, nan, nan, nan, nan]` `>>> [x``for` `x``in` `lst``if` `~np.isnan(x)]` `[``438.4``,``439.18``,``439.9``,``440.21999999999997``,``440.38``,``441.08000000000004``]` | | | | | 1234567 | `import` `numpy as np` `notadict``=` `np.array([``438.4``,``439.18``,``439.9``, np.nan, np.nan])` `print``(notadict[(~np.isnan(notadict))], notadict)` `print``(np.delete(notadict, np.isnan(notadict)), notadict)` `print``(np.nan_to_num(notadict, nan``=``0.0``), notadict)` `print``(np.nan_to_num(notadict, copy``=``False``, nan``=``0.0``), notadict)` | | | | | 12345678 | `nan``=` `0` `mylist``=` `[``438.4``,``439.18``,``439.9``,``440.21999999999997``,``440.38``,``441.08000000000004``, nan, nan, nan, nan]` `for` `i``in` `range``(``len``(mylist)):` `    ``if` `i >``=` `6``:` `        ``mylist.pop()` `print``(mylist)` | | | | | 1 | `my_dict.pop(nan)` | | | | | 12345678 | `nan``=` `0` `mylist``=` `[``438.4``,``439.18``,``439.9``,``440.21999999999997``,``440.38``,``441.08000000000004``, nan, nan, nan, nan]` `for` `i``in` `range``(``len``(mylist)):` `    ``if` `i >``=` `6``:` `        ``mylist.pop()` `print``(mylist)` | | | | | 12345678910 | `#! /usr/bin/env python3` `nan``=` `0` `mylist``=` `[``438.4``,``439.18``,``439.9``,``440.21999999999997``,``440.38``,``441.08000000000004``, nan, nan, nan, nan]` `for` `i``in` `range``(``len``(mylist)):` `    ``if` `0` `in` `mylist:` `        ``mylist.pop()` `print``(mylist)` | | | | | 123456 | `>>> l` `[``438.4``,``439.18``,``439.9``,``440.21999999999997``,``440.38``,``441.08``, nan, nan, nan, nan]` `>>>``import` `math` `>>> newlist``=` `[x``for` `x``in` `l``if` `not` `math.isnan(x)]` `>>> newlist` `[``438.4``,``439.18``,``439.9``,``440.21999999999997``,``440.38``,``441.08``]` | | | | | | | | |---|---|---|---|---|---| | **Possibly Related Threads…** | | | | | | | **Thread** | **Author** | **Replies** | **Views** | **Last Post** | | | | [dict class override: how access parent values?](https://python-forum.io/thread-36573.html) | [Andrey](https://python-forum.io/user-32920.html) | [1](https://python-forum.io/misc.php?action=whoposted&tid=36573) | 2,698 | Mar-06-2022, 10:49 PM [Last Post](https://python-forum.io/thread-36573-lastpost.html): [deanhystad](https://python-forum.io/user-23001.html) | | | [Trouble with converting list , dict to int values\!](https://python-forum.io/thread-29457.html) | [faryad13](https://python-forum.io/user-27243.html) | [7](https://python-forum.io/misc.php?action=whoposted&tid=29457) | 5,455 | Sep-04-2020, 06:25 AM [Last Post](https://python-forum.io/thread-29457-lastpost.html): [faryad13](https://python-forum.io/user-27243.html) | | | [Sort a dict in dict](https://python-forum.io/thread-25679.html) | [cherry\_cherry](https://python-forum.io/user-24009.html) | [4](https://python-forum.io/misc.php?action=whoposted&tid=25679) | 104,643 | Apr-08-2020, 12:25 PM [Last Post](https://python-forum.io/thread-25679-lastpost.html): [perfringo](https://python-forum.io/user-10222.html) | | | [How to access specific values from a dict?](https://python-forum.io/thread-24238.html) | [t4keheart](https://python-forum.io/user-22129.html) | [6](https://python-forum.io/misc.php?action=whoposted&tid=24238) | 4,406 | Feb-05-2020, 11:34 PM [Last Post](https://python-forum.io/thread-24238-lastpost.html): [metulburr](https://python-forum.io/user-1.html) | | | [updating certain values in dict. with relation to their keys](https://python-forum.io/thread-22785.html) | [malevy](https://python-forum.io/user-21173.html) | [17](https://python-forum.io/misc.php?action=whoposted&tid=22785) | 8,111 | Nov-27-2019, 02:37 PM [Last Post](https://python-forum.io/thread-22785-lastpost.html): [buran](https://python-forum.io/user-9.html) | | | [update dict as per range of values](https://python-forum.io/thread-20878.html) | [anna](https://python-forum.io/user-6335.html) | [7](https://python-forum.io/misc.php?action=whoposted&tid=20878) | 4,604 | Sep-13-2019, 04:37 PM [Last Post](https://python-forum.io/thread-20878-lastpost.html): [anna](https://python-forum.io/user-6335.html) | | | [match values against keys three dict](https://python-forum.io/thread-16295.html) | [anna](https://python-forum.io/user-6335.html) | [0](https://python-forum.io/misc.php?action=whoposted&tid=16295) | 2,671 | Feb-21-2019, 05:30 PM [Last Post](https://python-forum.io/thread-16295-lastpost.html): [anna](https://python-forum.io/user-6335.html) | | | [Compare Two Values in the Same Dict](https://python-forum.io/thread-11936.html) | [malonn](https://python-forum.io/user-9221.html) | [6](https://python-forum.io/misc.php?action=whoposted&tid=11936) | 5,908 | Aug-01-2018, 03:54 PM [Last Post](https://python-forum.io/thread-11936-lastpost.html): [malonn](https://python-forum.io/user-9221.html) | | | [sorting nested dict according to values](https://python-forum.io/thread-2672.html) | [merlem](https://python-forum.io/user-26.html) | [6](https://python-forum.io/misc.php?action=whoposted&tid=2672) | 20,271 | Apr-01-2017, 10:01 PM [Last Post](https://python-forum.io/thread-2672-lastpost.html): [snippsat](https://python-forum.io/user-7.html) | Users browsing this thread: 1 Guest(s) - [View a Printable Version](https://python-forum.io/printthread.php?tid=35162) Powered By [MyBB](https://mybb.com/), © 2020 Designed by[rain](https://community.mybb.com/thread-229223.html). 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