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How to write DataFrame to postgres table?
...gine, if_exists='replace',index=False) #truncates the table
conn = engine.raw_connection()
cur = conn.cursor()
output = io.StringIO()
df.to_csv(output, sep='\t', header=False, index=False)
output.seek(0)
contents = output.getvalue()
cur.copy_from(output, 'table_name', null="") # null values become ...
How to create duplicate allowed attributes
..., it only supports one attribute instance (per attribute type) per member; raw reflection supports any number...
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How to make Sequelize use singular table names
...ING,
}, {
hooks: {
beforeCount (options) {
options.raw = true;
}
},
tableName: 'people',
name: {
singular: 'person',
plural: 'people'
}
});
this will return "person" as an object when a single record is being queried and "people" as an...
“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
...ls. Apache might do some rewriting as well.
You can also look at supplied raw $_COOKIES and other HTTP request headers that way.
More obviously look at your browser address bar for GET parameters:
http://example.org/script.php?id=5&sort=desc
The name=value pairs after the ? question mark are ...
Suppress/ print without b' prefix for bytes in Python 3
...if the data is not already UTF-8 compatible. E.g. when the data are actual raw bytes.
from binascii import hexlify
from codecs import encode # alternative
>>> print(hexlify(b"\x13\x37"))
b'1337'
>>> print(str(hexlify(b"\x13\x37"), "utf-8"))
1337
>>>> print(str(encode(...
How do you log content of a JSON object in Node.js?
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To have an output more similar to the raw console.log(obj) I usually do use console.log('Status: ' + util.inspect(obj)) (JSON is slightly different).
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RAII and smart pointers in C++
...ake sure that we close the file once we've finished with it. This has two drawbacks - firstly, wherever we use File, we will have to called File::close() - if we forget to do this, we're holding onto the file longer than we need to. The second problem is what if an exception is thrown before we clos...
Execute bash script from URL
...
You can also do this:
wget -O - https://raw.github.com/luismartingil/commands/master/101_remote2local_wireshark.sh | bash
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How to highlight text using javascript
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You can use the jquery highlight effect.
But if you are interested in raw javascript code, take a look at what I got
Simply copy paste into an HTML, open the file and click "highlight" - this should highlight the word "fox". Performance wise I think this would do for small text and a single rep...
Is there a JavaScript / jQuery DOM change listener?
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In addition to the "raw" tools provided by MutationObserver API, there exist "convenience" libraries to work with DOM mutations.
Consider: MutationObserver represents each DOM change in terms of subtrees. So if you're, for instance, waiting for...