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How to parse/read a YAML file into a Python object? [duplicate]

...e_load instead load dataMap = yaml.safe_load(f) The variable dataMap now contains a dictionary with the tree data. If you print dataMap using PrettyPrint, you will get something like: {'treeroot': {'branch1': {'branch1-1': {'name': 'Node 1-1'}, 'name': 'Node 1'}, 'branch2': {'branch2-...
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What are the best practices for catching and re-throwing exceptions?

...database!"; die; } Logging or partial cleanup Sometimes you do not know how to properly handle an exception inside a specific context; perhaps you lack information about the "big picture", but you do want to log the failure as close to the point where it happened as possible. In this case, yo...
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PHP “php://input” vs $_POST

...1.1 {"key1":"value1","key2":"value2","key3":"value3"} The content would now be application/json (or at least none of the above mentioned), so PHP's $_POST-wrapper doesn't know how to handle that (yet). The data is still there, you just can't access it through the wrapper. So you need to fetch i...
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What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?

...s (also rows). In other words, Car → Wheel is a 1-to-many relationship. Now, let's say you need to iterate through all the cars, and for each one, print out a list of the wheels. The naive O/R implementation would do the following: SELECT * FROM Cars; And then for each Car: SELECT * FROM Wheel W...
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Check if two linked lists merge. If so, where?

...epoint). Let's denote them as follows: x = a+c y = b+c Since we don't know the length, we will calculate x and y without additional iterations; you'll see how. Then, we iterate each list and reverse them while iterating! If both iterators reach the merge point at the same time, then we find it...
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Virtual Serial Port for Linux

...en another terminal and write (Terminal 2): echo "Test" > /dev/pts/3 Now back to Terminal 1 and you'll see the string "Test". share | improve this answer | follow ...
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Width equal to content [duplicate]

... @NachoColoma i now use max-width: max-content; and that brings back the responsive behavior of the container element. – honk31 Mar 17 at 8:22 ...
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Calculate difference between two dates (number of days)?

... Yup, this is what I needed - most valuable answer cmon now nobody wants to think about Minutes and Seconds in calculating days – solujic Jun 13 '17 at 12:28 ...
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JavaScript: How do I print a message to the error console?

... +1. And for the benefit of anyone arriving at this question now, it's worth pointing out that since the question was answered, all browsers have now implemented the console object, so console.log() etc should work in all browsers, including IE. However, in all cases, you need to have ...
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Serving gzipped CSS and JavaScript from Amazon CloudFront via S3

... UPDATE: Amazon now supports gzip compression, so this is no longer needed. Amazon Announcement Original answer: The answer is to gzip the CSS and JavaScript files. Yes, you read that right. gzip -9 production.min.css This will produce...