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How update the _id of one MongoDB Document?

I want update an _id field of one document. I know it's not a really good pratice. But with some technical reason, I need update it. If I try to update it I get: ...
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warning about too many open figures

...) will remove a specific figure instance from the pylab state machine (plt._pylab_helpers.Gcf) and allow it to be garbage collected. share | improve this answer | follow ...
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Why does running the Flask dev server run itself twice?

...Flask with the development server when you call app.run(). See the restart_with_reloader() function code; your script is run again with subprocess.call(). If you set use_reloader to False you'll see the behaviour go away, but then you also lose the reloading functionality: app.run(port=4004, debu...
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How to add a custom loglevel to Python's logging facility

... example that checks if the logging level is enabled: import logging DEBUG_LEVELV_NUM = 9 logging.addLevelName(DEBUG_LEVELV_NUM, "DEBUGV") def debugv(self, message, *args, **kws): if self.isEnabledFor(DEBUG_LEVELV_NUM): # Yes, logger takes its '*args' as 'args'. self._log(DEBUG...
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How to get URL of current page in PHP [duplicate]

... $_SERVER['REQUEST_URI'] For more details on what info is available in the $_SERVER array, see the PHP manual page for it. If you also need the query string (the bit after the ? in a URL), that part is in this variable: $_S...
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How can I get all the request headers in Django?

...m HTTP headers. From the documentation: With the exception of CONTENT_LENGTH and CONTENT_TYPE, as given above, any HTTP headers in the request are converted to META keys by converting all characters to uppercase, replacing any hyphens with underscores and adding an HTTP_ prefix to the name. ...
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Split views.py in several files

...everything is a Python module (*.py). You can create a view folder with an __init__.py inside and you still will be able to import your views, because this also implements a Python module. But an example would be better. Your original views.py might look like this : def view1(arg): pass def v...
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How do I concatenate strings and variables in PowerShell?

... whitespace between $assoc.Id and " (et al). That is, option 1 gives you Id__-__Name__-__Owner (two spaces on each side of each -), but option 3 gives Id___-___Name___-___Owner (three spaces). – ruffin Dec 17 '14 at 15:10 ...
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setup.py examples?

... edited Dec 15 '14 at 19:15 gene_wood 1,47722 gold badges2323 silver badges3131 bronze badges answered Jan 19 '11 at 20:58 ...
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廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术

... 3.3.1先查看内核版本 ll -d /usr/src/kernels/2.6.32-358.el6.x86_64/ 3.3.2 编译 cd /usr/local/src/ drbd-8.4.6 make KDIR=/usr/src/kernels/2.6.32-358.el6.x86_64/ 3.3.3安装 make install 3.3.4加载模块 modprobe drbd lsmod | grep drbd drbd 376868 0 lib...