python 2.7 - pandas DataFrame metadata and set_index -


after several hours of writing nice metadata handler pandas dataframe, this: 

>>> import pandas pd >>> = pd.dataframe({'frame':[0,1,2,3,4,5,6,7], 'x':[1,2,2,2,3,4,2,11], 'y':[2,2,3,2,2,3,2,10]}) >>>    frame   x   y 0      0   1   2 1      1   2   2 2      2   2   3 3      3   2   2 4      4   3   2 5      5   4   3 6      6   2   2 7      7  11  10  >>> a.set_index('frame')         x   y frame         0       1   2 1       2   2 2       2   3 3       2   2 4       3   2 5       4   3 6       2   2 7      11  10  >>> type(a._metadata) list  >>> a._metadata.append(dict())  >>> a.set_index('frame') --------------------------------------------------------------------------- typeerror                                 traceback (most recent call last) <ipython-input-11-a271477b5f41> in <module>() ----> 1 a.set_index('frame')  /usr/lib/python2.7/dist-packages/pandas/core/frame.pyc in set_index(self, keys, drop, append, inplace, verify_integrity)    2453             frame = self    2454         else: -> 2455             frame = self.copy()    2456     2457         arrays = []  /usr/lib/python2.7/dist-packages/pandas/core/generic.pyc in copy(self, deep)    2212         """    2213         data = self._data.copy(deep=deep) -> 2214         return self._constructor(data).__finalize__(self)    2215     2216     def convert_objects(self, convert_dates=true, convert_numeric=false,  /usr/lib/python2.7/dist-packages/pandas/core/generic.pyc in __finalize__(self, other, method, **kwargs)    1923         if isinstance(other, ndframe):    1924             name in self._metadata: -> 1925                 object.__setattr__(self, name, getattr(other, name, none))    1926         return self    1927   typeerror: getattr(): attribute name must string

appending dictionary might not ultimate way , changed 

>>> a._metadata = dict()

but, shouldn't be, or yes? bug or mistake?

thanks, kami


Comments

Post a Comment

Popular posts from this blog

Payment information shows nothing in one page checkout page magento -

i using magento ver. 1.9.1.0 want remove shipping information , shipping method step 1 page checkout page. changed code in core file like in app\code\core\mage\checkout\block\onepage.php public function getsteps() { $steps = array(); $stepcodes = $this->_getstepcodes(); /* remove shipping address , shipping method */ $excludestep=array_diff($stepcodes,array('shipping','shipping_method')); //$excludestep=$stepcodes; if ($this->iscustomerloggedin()) { $stepcodes = array_diff($excludestep, array('login')); } foreach ($excludestep $step) { $steps[$step] = $this->getcheckout()->getstepdata($step); } return $steps; } and in app\code\core\mage\checkout\controllers\onepagecontroller.php public function savebillingaction() { if ($this->_expireajax()) { return; } if ($this->getrequest()-...
Read more

tcpdump - How to check if server received packet (acknowledged) -

Image
i running tcpdump on server capture traffic between server (servera) , remote server (serverb). not know how read output tcpdump. point out if serverb acknowledging packets being sent servera being received serverb? here tcpdump log: 2015-03-31 11:32:18.038284 ip (tos 0x0, ttl 64, id 30781, offset 0, flags [df], proto tcp (6), length 60) servera.14033 > serverb.8004: flags [s], cksum 0x02bd (correct), seq 337482636, win 14600, options [mss 1460,nop,nop,ts val 506588081 ecr 0,nop,wscale 7], length 0 0x0000: 4500 003c 783d 4000 4006 bae4 0a04 7a0e e.. servera.14033: flags [s.], cksum 0x3b2a (correct), seq 1742982091, ack 337482637, win 4140, options [mss 1380,nop,wscale 0], length 0 0x0000: 4500 0030 5ff2 0000 f606 5d3b cefd b48a e..0_.....];.... 0x0010: 0a04 7a0e 1f44 36d1 67e3 cbcb 141d 938d ..z..d6.g....... 0x0020: 7012 102c 3b2a 0000 0204 0564 0103 0300 p..,;*.....d.... 2015-03-31 11:32:18.078622 ip (tos 0x0, ttl 64, id 30782, offset 0, flags [...
Read more