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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 ...
Where in an Eclipse workspace is the list of projects stored?
...ed, but the (different) location where the projects lived: different drive letter. I ended up fixing these files in place with (D:->F:) sfk replace -pat -binary _5552492F2F66696C653A2F443A2F_5552492F2F66696C653A2F463A2F_ -dir .metadata\.plugins\org.eclipse.core.resources\.projects -file .location...
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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Java multiline string
... old thread, but a new quite elegant solution (with only 4 maybe 3 little drawbacks) is to use a custom annotation.
Check : http://www.adrianwalker.org/2011/12/java-multiline-string.html
A project inspired from that work is hosted on GitHub:
https://github.com/benelog/multiline
Example of Java...
How can I determine the type of an HTML element in JavaScript?
... ... } This way, if for some reason it is no longer returned in uppercase letters (lowercase or mixed), you won't have to change it and this code will still work fine.
– TheCuBeMan
Oct 20 '14 at 15:39
...
Disable developer mode extensions pop up in Chrome
... ExtensionDeveloperModeWarning (F7)
press F3 to edit and replace the first letter "E" with any other character
save (F9).
patch.BAT script
Of course this will last only until the next update so whoever needs it frequently might write an auto-patcher or a launcher that patches the dll in memory.
...
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...
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(...
Performance of Java matrix math libraries? [closed]
... one per operation); accesses to elements of an array are compiled to use "raw" MOV instructions as you'd expect; it makes decisions on how to allocate variables to registers when it can; it re-orders instructions to take advantage of processor architecture... A possible exception is that as I menti...
What is the difference between “word-break: break-all” versus “word-wrap: break-word” in CSS
... Simply put: "word-break specifies soft wrap opportunities between letters…" The W3C spec uses CLK text as an example, but that is not its sole intended use. It is common to use word-break in conjunction with long strings (such as URLs or lines of code) when you want them to break at the c...