How to solve ReadTimeoutError: HTTPSConnectionPool(host='pypi.python.org', port=443) with pip?
I recently need to install some packages ``` pip install future pip install scikit-learn pip install numpy pip install scipy ``` I also tried by writin `sudo` before them but all it came up with th...
Merge two data frames based on common column values in Pandas
How to get merged data frame from two data frames having common column value such that only those rows make merged data frame having common value in a particular column. I have 5000 rows of `df1` as...
Using "is" keyword with "null" keyword c# 7.0
Recently i find out, that the following code compiles and works as expected in VS2017. But i can't find any topic/documentation on this. So i'm curious is it legit to use this syntax: ``` class Progr...
Authenticate server to server communication with API key
I have a couple of self-hosted windows services running with ServiceStack. These services are used by a bunch of WPF and WinForms client applications. I have written my own `CredentialsAuthProvider`....
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- 8 Apr at 08:59
Host ServiceStack in HyperFastCGI, error fcgi-transport.c:444: parse_params(): Can't find app! HOST
I need to install the web service on Linux, but ran into such a problem, can you tell me how can it be solved? Thanks! OC: CentOS7 Mono JIT compiler version 4.8.0 (Stable 4.8.0.520/8f6d0f6 Wed Mar ...
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- 8 Apr at 06:48
String Interpolation With Variable Content in C#
Can one store the template of a string in a variable and use interpolation on it? ``` var name = "Joe"; var template = "Hi {name}"; ``` I then want to do something like: ``` var result = $template...
IOPub data rate exceeded in Jupyter notebook (when viewing image)
I want to view an image in Jupyter notebook. It's a 9.9MB .png file. ``` from IPython.display import Image Image(filename='path_to_image/image.png') ``` I get the below error: ``` IOPub data rate ...
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- 1 Nov at 01:44
Python matplotlib - setting x-axis scale
I have this graph displaying the following: ``` plt.plot(valueX, scoreList) plt.xlabel("Score number") # Text for X-Axis plt.ylabel("Score") # Text for Y-Axis plt.title("Scores for the topic "+progre...
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- 7 Apr at 20:23
HttpContext.Current.Request.Form.AllKeys in ASP.NET CORE version
``` foreach (string key in HttpContext.Current.Request.Form.AllKeys) { string value = HttpContext.Current.Request.Form[key]; } ``` What is the .net core version of the above code? Seems like .net...
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- 31 May at 16:27
KeyValuePair naming by ValueTuple in C# 7
Can the new feature in C# 7.0 (in VS 2017) to give tuple fields names be translated to KeyValuePairs? Lets assume I have this: ``` class Entry { public string SomeProperty { get; set; } } var all...
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- 8 Apr at 20:12
Changing Delegate signature in library to omit an argument does not break applications using it
Consider the following code in a class library: ``` public class Service { public delegate string Formatter(string s1, string s2); public void Print(Formatter f) { Console.WriteL...
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- 13 Apr at 21:23
How to use paths in tsconfig.json?
I was reading about [path-mapping](https://www.typescriptlang.org/docs/handbook/module-resolution.html#path-mapping) in `tsconfig.json` and I wanted to use it to avoid using the following ugly paths: ...
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- 31 Oct at 06:1
MVC .Net Core Model Validation - The value '' is invalid. Error
I am trying to use Model Validation in MVC .Net Core and can't manage to replace this default error message 'The value '' is invalid'. In theory, we can replace our own custom error message by using ...
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- 7 Apr at 15:1
Get current Activity - Xamarin Android
I am developing an portable App for Android and iOS. My current function is taking a Screenshot and use that image in the code. Therefor I have an Interface in the portable library. ``` public interf...
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- 7 Apr at 13:55
Entity Framework core - Contains is case sensitive or case insensitive?
"Contains" in Entity Framework core should equivalent to the SQL %like% operator. Therefore "Contains" should be case insensitive however it is case sensitive! (at least in postgres????) The followin...
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- 7 Apr at 12:13
Entity Framework Core - setting the decimal precision and scale to all decimal properties
I want to set the precision of all the decimal properties to (18,6). In EF6 this was quite easy: ``` modelBuilder.Properties<decimal>().Configure(x => x.HasPrecision(18, 6)); ``` but I can't seem t...
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- 23 May at 12:25
Development server of create-react-app does not auto refresh
I am following a [tutorial](https://egghead.io/courses/react-fundamentals) on React using create-react-app. The application is created by [create-react-app](https://github.com/facebookincubator/creat...
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- 7 Apr at 09:47
How to write thread-safe C# code for Unity3D?
I'd like to understand how to write thread safe code. For example I have this code in my game: ``` bool _done = false; Thread _thread; // main game update loop Update() { // if computation done...
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- 7 Apr at 11:41
Setting the version number for .NET Core projects - CSPROJ - not JSON projects
This question is very similar to [Setting the version number for .NET Core projects](https://stackoverflow.com/questions/36057041/setting-the-version-number-for-net-core-projects), but not the same. U...
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- 27 Jan at 20:13
Download to excel - Service Stack
I have a servicestack doing download to excel as below ``` $.ajax({ url: url, type: 'Get', async: true, data: data, success: function (data) { var blob = new Blob([da...
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- 23 May at 05:12
Error message "Linter pylint is not installed"
I want to run Python code in Microsoft Visual Studio Code but it gives an error: > Linter pylint is not installed I installed: - - - How can I install Pylint?
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- 22 Jan at 09:49
Converting between C# List and F# List
Remark: This is a self-documentation, but if you have any other suggestions, or if I made any mistakes/miss out something obvious, I would really appreciate your help. Sources: [convert .NET generi...
Process finished with exit code 137 in PyCharm
When I stop the script manually in PyCharm, process finished with exit code 137. But I didn't stop the script. Still got the exit code 137. What's the problem? Python version is 3.6, process finished...
Trying to use fetch and pass in mode: no-cors
I can hit this endpoint, `http://catfacts-api.appspot.com/api/facts?number=99` via Postman and it returns `JSON` Additionally I am using create-react-app and would like to avoid setting up any server...
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- 22 Jun at 08:59