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1. Learning Elasticsearch (ii)

   This serie of posts introduces basic usage of Elasticsearch in 中文

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2. Learning Elasticsearch (i)

   This serie of posts introduces basic usage of Elasticsearch in 中文

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3. Learning Elasticsearch (iv)

   This serie of posts introduces basic usage of Elasticsearch in 中文

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4. Cerberus: Triple-head hound of Hades

   rules_set_registry: only stores schema itself, for example {'type': 'string', 'required': True}
   schema_registry: stores complete schema, for example {'name': {'type': 'string', 'required': True}}, it can be used directly.

   It's not easy to allow_unknown for parent schema (for nested dict), because you cannot put allow_unknown inside the defination of schema. You have …

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5. On the BeGinNing

   Welcome to visit 'python-NOTes' category in LuCima's SpaCe. Here gathers several posts summerized advanced usages, tips and black techs about Python. All contents are based on Python 3.x, though Python 2.x may be referred to shortly.

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6. Operaions on Basic data structure -- dict

   Series of posts (2)

   If you want to build up a dict using two lists, zip() can be used as this:
   dict(zip(list_a, list_b))

   Sometimes, OrderedDict and DefaultDict in module collections can be useful. When you need a dict whose keys are

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7. Operaions on Basic data structure -- list

   Series of posts (1)

   Here I am going to summarize some advancing operations about list, which is one of the most commonly used data structure in Python. Basic usage of list will be skipped.

   The built-in function sorted() is helpful for sorting the list or …

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8. Operations on FILE and PATH

   This post is going to introduce Python's' operations upon files and paths in OS. The most commonly used modules are os.path and shutil.

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9. How to implement User Datagram Protocol with Python RAW socket

   one’s complement in UDP

   1. Construct the UDP header and UDP Pseudo header, as illustrated below, where Checksum is set zero at first.
   2. Check the length of data, if it is an odd length of bytes, supplement a byte of zero (0x00) at the end of the data when counting …

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