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Is it possible only to declare a variable without assigning any value in Python?

Is it possible to declare a variable in Python, like so?: 14 Answers 14 ...
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Writing files in Node.js

I've been trying to find a way to write to a file when using Node.js, but with no success. How can I do that? 19 Answers ...
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XAMPP - Port 80 in use by “Unable to open process” with PID 4! 12

I have been trying to figure out how to fix this problem for two days. I'm new to this kind of thing so I would appreciate it if someone could tell me how to fix it. ...
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spring boot default H2 jdbc connection (and H2 console)

I am simply trying to see the H2 database content for an embedded H2 database which spring-boot creates when I don't specify anything in my application.properties and start with mvn spring:run. I can see hibernate JPA creating the tables but if I try to access the h2 console at the URL below the dat...
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What is the best extension for SQLite database files? [closed]

I know there is no specific naming convention, but what extension do you recommend when using SQLite? 5 Answers ...
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The SMTP server requires a secure connection or the client was not authenticated. The server respons

I want to send an email from my application and i have written following code for sending mail 19 Answers ...
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How can I troubleshoot my Perl CGI script?

I have a Perl script that isn't working and I don't know how to start narrowing down the problem. What can I do? 8 Answers ...
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how to get android screen size programmatically, once and for all?

How can I find out my screen size programmatically, in the units used by touch events and View measurement/layout? In other words, I want the coordinates of the bottom-right corner of the screen, in the coordinate system used by touch events' getRawX()/getRawY() and View.getLocationOnScreen() . ...
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Remove characters except digits from string using Python?

How can I remove all characters except numbers from string? 15 Answers 15 ...
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Unable to resolve “unable to get local issuer certificate” using git on Windows with self-signed cer

I am using Git on Windows. I installed the msysGit package. My test repository has a self signed certificate at the server. I can access and use the repository using HTTP without problems. Moving to HTTPS gives the error: ...