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Python dictionary: Get list of values for list of keys
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If mydict is a function call (that returns a dict) then this calls the function multiple times, right?
– endolith
Sep 30 '18 at 3:09
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What's the Linq to SQL equivalent to TOP or LIMIT/OFFSET?
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VB now has a Take() method as well. I had to use a variable for the amount to take, and the expression did not work, while the method did.
– Dave Johnson
Mar 2 '16 at 19:24
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Is there a difference between “==” and “is”?
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is will return True if two variables point to the same object, == if the objects referred to by the variables are equal.
>>> a = [1, 2, 3]
>>> b = a
>>> b is a
True
>>> b == a
True
# Make a new copy of list...
How to do relative imports in Python?
...__ attribute to determine that module's position in the package hierarchy. If the module's name does not contain any package information (e.g. it is set to '__main__') then relative imports are resolved as if the module were a top level module, regardless of where the module is actually located on t...
Pretty Printing a pandas dataframe
... want an inbuilt function to dump your data into some github markdown, you now have one. Take a look at to_markdown:
df = pd.DataFrame({"A": [1, 2, 3], "B": [1, 2, 3]}, index=['a', 'a', 'b'])
print(df.to_markdown())
| | A | B |
|:---|----:|----:|
| a | 1 | 1 |
| a | 2 | 2 |
| b...
What's the difference between globals(), locals(), and vars()?
What is the difference between globals() , locals() , and vars() ? What do they return? Are updates to the results useful?
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How to fix the “java.security.cert.CertificateException: No subject alternative names present” error
...ytool expects, e.g. openssl x509 -in certs.txt -out certs.der -outform DER
Now you want to import this cert into the system default 'cacert' file. Locate the system default 'cacerts' file for your Java installation. Take a look at How to obtain the location of cacerts of the default java installatio...
Viewing all defined variables [duplicate]
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If possible, you may want to use IPython.
To get a list of all current user-defined variables, IPython provides a magic command named who (magics must be prefixed with the modulo character unless the automagic feature is ena...
JavaScript, elegant way to check nested object properties for null/undefined [duplicate]
a "problem" which i have every now and then is that i have an object e.g. user = {} and through the course of using the app this gets populated. Let's say somwhere, after an AJAX call or something i do this:
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How do I install Maven with Yum?
...-maven/epel-apache-maven.repo -O /etc/yum.repos.d/epel-apache-maven.repo
Now you can install maven like this:
yum install apache-maven
Once done, maven 3 will be installed and mvn -version will show you which version you've got - I had 3.2.1.
This worked perfectly for me on CentOS 6 with one e...