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How to read data from a zip file without having to unzip the entire file
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{
ZipEntry e = zip["MyReport.doc"];
e.Extract(OutputStream);
}
(you can also extract to a file or other destinations).
Reading the zip file's table of contents is as easy as:
using (ZipFile zip = ZipFile.Read(ExistingZipFile))
{
foreach (ZipEntry e in zip)
{
if (header)
{
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python numpy ValueError: operands could not be broadcast together with shapes
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dot is matrix multiplication, but * does something else.
We have two arrays:
X, shape (97,2)
y, shape (2,1)
With Numpy arrays, the operation
X * y
is done element-wise, but one or both of the values can be expanded in one or more dimension...
How to use RSpec's should_raise with any kind of exception?
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This doesn't work for me in capybara: expect { visit welcome_path }.to raise_error
– nnyby
Dec 3 '13 at 15:16
add a comment
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How to import existing *.sql files in PostgreSQL 8.4?
...ostgreSQL 8.4, and I have some *.sql files to import into a database. How can I do so?
5 Answers
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How to specify font attributes for all elements on an html web page?
...re the rule doesn't make any sense. Depending on the size of the HTML this can slow the page rendering.
– Cesar Canassa
Oct 16 '10 at 7:37
4
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django: BooleanField, how to set the default value to true?
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If you're just using a vanilla form (not a ModelForm), you can set a Field initial value ( https://docs.djangoproject.com/en/2.2/ref/forms/fields/#django.forms.Field.initial ) like
class MyForm(forms.Form):
my_field = forms.BooleanField(initial=True)
If you're using a ModelFor...
Switch case with fallthrough?
...am looking for the correct syntax of the switch statement with fallthrough cases in Bash (ideally case-insensitive).
In PHP I would program it like:
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Recommended way to stop a Gradle build
How can I stop a Gradle build after detecting a problem? I can use an assert, throw an exception, do a System.exit (bad idea), or use a dedicated function in Gradle (but I could not find one). What is the best way for Gradle (and why?).
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Android Studio/Intellij Idea: “Table of Contents” for a class
...able of Contents" for a class. I apologize for not knowing exactly what to call it. But what I am referring to is the dropdown menu in eclipse that lists all the methods, interfaces, classes and so on that are in that class file. This then allows you to jump to that position. This view is when you a...
Re-entrant locks in C#
...e same object. The recursive code effectively already has the lock and so can continue unhindered.
lock(object) {...} is shorthand for using the Monitor class. As Marc points out, Monitor allows re-entrancy, so repeated attempts to lock on an object on which the current thread already has a lock ...