Categories
Mastering Development

Use pyunpack inside an executable file made with pyinstaller in combination with try except

I have a strange behaviour for pyunpack, a package for unpacking, inside an executable. I want to do the following thing: I have a .7z type of file whose ending is not in .7z but in .sent. First I try to unzip it the direct way, which leads to an expected error that is caught. […]

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Development

Using perl `my` within actual function arguments

I want to use perl to build a document graph as readably as possible. For re-use of nodes, I want to refer to nodes using variables (or constants, if that is easier). The following code works and illustrates the idea with node types represented by literals or factory function calls to a and b. (For […]

Categories
Bitcoin Cryptocurrency Development

How to properly combine PSBTs for CoinJoin?

I am trying to learn the workflow for manual Coinjoins using PSBTs. I was following Andy Chow’s suggestions in another thread here Where he suggests 1. Createpsbt (he suggests using walletcreatefundedpsbt) 2. Have individual users send their PSBTs to coordinator 3. Coordinator uses joinpsbts to join the separate PSBTs into one 4. Coordinator sends joined […]

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Development

Create a WHERE (columns) IN (values) clause with Arel?

Is there a way to programatically create a where clause in Arel where the columns and values are specified separately? SELECT users.* WHERE (country, occupation) IN ((‘dk’, ‘nurse’), (‘ch’, ‘doctor’), … Say the input is a really long list of pairs that we want to match. And we don’t want to create a long WHERE […]

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Development

Inserting in ReactJS iteration

I want to fill up a Dialog Box with data from a .json file. Here is a single element of the data that is provided. { “type”: “GP”, “properties”: { //other information “DR_NAME”: “Dr Philips”, “ALL_OPENING_HOURS”: [ { “day_string”: “Monday – Thursday”, “opening_hours”: [ “8.30AM – 12.30PM”, “2.00PM – 4.30PM”, “6.30PM – 9.00PM” ] }, […]

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Development

Construct an advanced slice from string in Python/Numpy

Suppose I have a CLI and would like to construct a slice from the CLI, where the CLI user just inputs a range string. r = ‘1:4:2’ axis = ‘2’ And I have a way of slicing this as follows: arr = np.zeros((10,10,10)) sliced_arr = eval(“arr[“+’,’.join([‘:’,’:’,r])+”]”) Question: is there a better way to do this?

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Development

CVS file parser on UNIX command line with sed(1), can it be done?

On the UNIX command line we can do simple record-oriented file work using simple field delimiters (or field separators). Common delimiters are space, tab, or vertical bar, but any character can be the delimiter. The commands sort, join, cut, etc. all take the field delimiter as an option -t or -d, and the shell (bourne […]

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Development

CVS file parser on UNIX command line with sed(1), can it be done?

On the UNIX command line we can do simple record-oriented file work using simple field delimiters (or field separators). Common delimiters are space, tab, or vertical bar, but any character can be the delimiter. The commands sort, join, cut, etc. all take the field delimiter as an option -t or -d, and the shell (bourne […]

Categories
Development

CVS file parser on UNIX command line with sed(1), can it be done?

On the UNIX command line we can do simple record-oriented file work using simple field delimiters (or field separators). Common delimiters are space, tab, or vertical bar, but any character can be the delimiter. The commands sort, join, cut, etc. all take the field delimiter as an option -t or -d, and the shell (bourne […]

Categories
CMS Development Drupal Plugins

JOIN subquery as right table in Views

I have a node field named event_date which contains multiple values of dates. The table for the field looks like this: node__field_event_date +—————-+————+ | entity_id(nid) | event_date | +—————-+————+ | 1 | 2019-1-1 | | 1 | 2019-1-2 | | 2 | 2019-1-3 | | 2 | 2019-1-4 | +—————-+————+ I would like to join […]