extensions for pandas) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 731  25.2 
Expression Evaluation via eval() (Experimental) . . . . . . . . . . . . . . . . . . . . . . . . . . . 735 time in learning about NumPy first.  See the package overview for more detail about what’s in the 
library.  2 CONTENTS  CHAPTER  ONE  WHAT’S NEW  These are new features and improvements of note in each release days 00:00:00’, ..., ’2 days 00:00:02’] Length: 4, Freq: None  Constructing a TimedeltaIndex with a 
regular range  In [24]: timedelta_range(’1 days’,periods=5,freq=’D’) Out[24]: 
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  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63  1.5.3 Reorganization of the library: Privacy Changes . . . . . . . . . . . . . . . . . . . . . . . . 64  1.5.3.1 Modules Privacy Has . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 743  15.5.6 String/Regular Expression Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 744  15.5.7 Numeric Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1149  26.3 Expression Evaluation via eval() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1149
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  extensions for pandas) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 535  21.2 Expression Evaluation via eval() (Experimental) . . . . . . . . . . . . . . . . . . . . . . . . . . . 539 time in learning about NumPy first.  See the package overview for more detail about what’s in the library.  2 CONTENTS  CHAPTER  ONE  WHAT’S NEW  These are new features and improvements of note in each release for DataFrames  Several experimental features are added, including:  • new eval/query methods for expression evaluation  • support for msgpack serialization  • an i/o interface to Google’s BigQuery  Their
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  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34  1.3.3 Reorganization of the library: Privacy Changes . . . . . . . . . . . . . . . . . . . . . . . . 35  1.3.3.1 Modules Privacy Has . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 713  15.5.6 String/Regular Expression Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 714  15.5.7 Numeric Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1113  26.3 Expression Evaluation via eval() (Experimental) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1113
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  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32  1.2.3 Reorganization of the library: Privacy Changes . . . . . . . . . . . . . . . . . . . . . . . . 34  1.2.3.1 Modules Privacy Has . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 710  15.5.6 String/Regular Expression Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 712  15.5.7 Numeric Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1111  26.3 Expression Evaluation via eval() (Experimental) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1111
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  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 640  16.5.6 String/Regular Expression Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 641  16.5.7 Numeric Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1013  27.3 Expression Evaluation via eval() (Experimental) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1013 . . . . . . . . . . . . . . . . . . . . . . . . . . . 1020  27.3.8 Technical Minutia Regarding Expression Evaluation . . . . . . . . . . . . . . . . . . . . . 1021  28 Sparse data structures 1023  28.1
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