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Get Image size WITHOUT loading image into memory
... the docstring for .open says:
def open(fp, mode="r"):
"Open an image file, without loading the raster data"
There are a few file operations in the source like:
...
prefix = fp.read(16)
...
fp.seek(0)
...
but these hardly constitute reading the whole file. In fact .open simply returns...
How does “cat
...ne text in Bash, eg. when assigning multi-line string to a shell variable, file or a pipe.
Examples of cat <<EOF syntax usage in Bash:
1. Assign multi-line string to a shell variable
$ sql=$(cat <<EOF
SELECT foo, bar FROM db
WHERE foo='baz'
EOF
)
The $sql variable now holds the ne...
How can I match a string with a regex in Bash?
...hat contains a function so when given a .tar , .tar.bz2 , .tar.gz etc. file it uses tar with the relevant switches to decompress the file.
...
How can I get a list of build targets in Ant?
My codebase has a long build.properties file written by someone else. I want to see the available built targets without having to search through the file manually. Does ant have a command for this - something like ant show-targets - that will make it list all the targets in the build file?
...
SQLite Concurrent Access
...contention could become an issue. A lot would then depend on how fast your filesystem is, since the SQLite engine itself is extremely fast and has many clever optimizations to minimize contention. Especially SQLite 3.
For most desktop/laptop/tablet/phone applications, SQLite is fast enough as there...
How to remove a project (from the workspace) in PHPStorm?
...m IDE
Please visit the folder 'PhpstormProjects' and delete the project file manually. If you do so, you will see the folder disappear from Phpstorm explore window. This might be weird, but true.
B. Remove from the recent project panel of Phpstorm 2018.3
(The folder after such removal will h...
Can vim monitor realtime changes to a file
My question is similar to this how to monitor a text file in realtime
but I want to do it in vim. I know I can read an opened file use tail -f sample.xml file, and when new content is written to the file, it'll also write the new content to my screen. Can I have vim automatically fill the new da...
Build unsigned APK file with Android Studio
...
I would recommend you to build your APK file with Gradle:
Click the dropdown menu in the toolbar at the top (Open 'Edit Run/Debug configurations' dialog)
Select "Edit Configurations"
Click the "+"
Select "Gradle"
Choose your module as a Gradle project
In Tasks: ...
Importing variables from another file?
How can I import variables from one file to another?
8 Answers
8
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Express: How to pass app-instance to routes from a different file?
I want to split up my routes into different files, where one file contains all routes and the other one the corresponding actions. I currently have a solution to achieve this, however I need to make the app-instance global to be able to access it in the actions.
My current setup looks like this:
...