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How do I convert a IPython Notebook into a Python file via commandline?
...
If you don't want to output a Python script every time you save, or you don't want to restart the IPython kernel:
On the command line, you can use nbconvert:
$ jupyter nbconvert --to script [YOUR_NOTEBOOK].ipynb
As a bit ...
ExecuteReader requires an open and available Connection. The connection's current state is Connectin
...Connection-Pool:
In practice, most applications use only one or a few different
configurations for connections. This means that during application
execution, many identical connections will be repeatedly opened and
closed. To minimize the cost of opening connections, ADO.NET uses an
opti...
Entity Framework select distinct name
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DBContext.TestAddresses.Select(m => m.NAME).Distinct();
if you have multiple column do like this:
DBContext.TestAddresses.Select(m => new {m.NAME, m.ID}).Distinct();
In this example no duplicate CategoryId and no CategoryName i hope this will help you
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How to get all possible combinations of a list’s elements?
...t iterable.
Combinations are emitted in lexicographic sort order. So, if the
input iterable is sorted, the
combination tuples will be produced in
sorted order.
Since 2.6, batteries are included!
share
|...
Store query result in a variable using in PL/pgSQL
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What if I need multiple variables. Like select test_table.name, test_table.id, test_table.ssn?
– Dao Lam
Mar 5 '15 at 20:00
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Find the version of an installed npm package
...ist -g for globally installed packages.
You can find the version of a specific package by passing its name as an argument. For example, npm list grunt will result in:
projectName@projectVersion /path/to/project/folder
└── grunt@0.4.1
Alternatively, you can just run npm list without passing...
ImportError: No Module Named bs4 (BeautifulSoup)
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Activate the virtualenv, and then install BeautifulSoup4:
$ pip install BeautifulSoup4
When you installed bs4 with easy_install, you installed it system-wide. So your system python can import it, but not your virtualenv python.
If you do not need bs4 to be installed in...
Select distinct values from a table field
...ordering when using distinct(). See the documentation under order_by()
If you don’t want any ordering to be applied to a query, not even the default ordering, call order_by() with no parameters.
and distinct() in the note where it discusses issues with using distinct() with ordering.
To que...
How to read data from a zip file without having to unzip the entire file
...p = ZipFile.Read(ExistingZipFile))
{
foreach (ZipEntry e in zip)
{
if (header)
{
System.Console.WriteLine("Zipfile: {0}", zip.Name);
if ((zip.Comment != null) && (zip.Comment != ""))
System.Console.WriteLine("Comment: {0}", zip.Comment);
System.Console....
Batch files: How to read a file?
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This is a pretty complex example, parsing very specific information from a particularly formatted text file, without giving any explanation. As per for /? the command would parse each line in myfile.txt, ignoring lines that begin with a semicolon, passing the 2nd and 3rd toke...