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How does one remove an image in Docker?
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To remove an image from Docker using the image ID:
Get the list of all Images
docker images
Identify the image ID of the image you want to delete, for example:
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
kweku360/jav...
Replacing blank values (white space) with NaN in pandas
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If you are exporting the data from the CSV file it can be as simple as this :
df = pd.read_csv(file_csv, na_values=' ')
This will create the data frame as well as replace blank values as Na
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How can I check if a string is null or empty in PowerShell?
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I agree with this solution better from a scripting standpoint. As always, Keith Hill has the correct solution! Thanks.
– Vippy
May 29 '15 at 17:27
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How to check if a view controller is presented modally or pushed on a navigation stack?
...umentation for isBeingPresented - This method returns YES only when called from inside the viewWillAppear: and viewDidAppear: methods.
– funct7
Jun 25 '15 at 0:30
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“loop:” in Java code. What is this, and why does it compile?
...om/myfile.mp3
downLoad(url);
Would you all know what this code is (apart from awful)?
Solution: two labels, url and http, a comment www.myserver.com/myfile.mp3 and a method call with a parameter that has the same name (url) as the label. Yup, this compiles (if you define the method call and the l...
I'm getting Key error in python
...erally means the key doesn't exist. So, are you sure the path key exists?
From the official python docs:
exception KeyError
Raised when a mapping (dictionary) key is not found in the set of
existing keys.
For example:
>>> mydict = {'a':'1','b':'2'}
>>> mydict['a']
'1'
&g...
Getting started with F# [closed]
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Thank you. I learned a ton from the koans, and i would totally be interested in some advanced level ones.
– Tyler Smith
Oct 18 '12 at 15:19
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What does auto do in margin:0 auto?
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From the CSS specification on Calculating widths and margins for Block-level, non-replaced elements in normal flow:
If both 'margin-left' and 'margin-right' are 'auto', their used values are equal. This horizontally cente...
How can I concatenate NSAttributedStrings?
... out there, you could also create a single mutable attributed string, made from a formatted NSString containing the input strings already put together. You could then use addAttributes: range: to add the attributes after the fact to the ranges containing the input strings. I recommend the former way...
Only get hash value using md5sum (without filename)
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Also gmd5sum from coreutils would work on MacOS like md5sum in other answers mentioned here.
– Anton Tarasenko
Nov 21 '18 at 16:00
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