.. only:: latex
	  
   .. raw:: latex

      \appendix


.. only:: not latex

   .. rubric:: 莉倬鹸
      
.. _misc:

==============
縺昴�莉冶ォク縲�
==============

zip, enumerate, range and other iterator/generaotor
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
python縺ョfor譁�� 蜿榊セゥ蜿ッ閭ス縺ェ繧ェ繝悶ず繧ァ繧ッ繝�(iterable oject)縺ォ蟇セ縺励※邯壹¥繧ケ繧、繝シ繝医�荳ュ霄ォ繧貞ョ溯。後@縺セ縺吶€�
iterable繧ェ繝悶ず繧ァ繧ッ繝医→縺励※縺ッ繝ェ繧ケ繝�(list)繧�ち繝励Ν(tuple)縺後h縺冗衍繧峨l縺ヲ縺�k縺後€√◎縺ョ莉悶↓繧ゅう繝�Λ繝悶Ν縺ェ
繧ェ繝悶ず繧ァ繧ッ繝医′蟄伜惠縺励∪縺吶€�
python3縺ァ縺ッ縲― :py:class:`zip, range, enumerate, map`\ 縺ッ繧ッ繝ゥ繧ケ縺ィ縺ェ繧翫◎縺ョ蜻シ縺ウ蜃コ縺励�繧、繝�Λ繝悶Ν縺ェ
繧ェ繝悶ず繧ァ繧ッ繝医r霑斐☆繧医≧縺ォ縺ェ繧翫∪縺励◆縲Qython2縺ァ縺ッ\ :py:func:`zip, enumerate, map`\ 縺ッ繝ェ繧ケ繝医r霑斐@縺ヲ縺�∪縺励◆縺ョ縺ァ縲�
邨先棡縺ョ繝ェ繧ケ繝医′蠢�ヲ√↑蝣エ謇€縺ァ縺ッ縲√%繧後i縺ョ蜻シ縺ウ蜃コ縺励r\ :py:func:`list`\ 縺ァ繝ゥ繝��縺励※縺翫¥蠢�ヲ√′縺ゅj縺セ縺吶€�

python3縺ョ\ :py:mod:`itertools`\ 縺ォ縺ッ縲’or譁�〒繧医¥菴ソ繧上l繧九ヱ繧ソ繝シ繝ウ繧堤ー。逡・縺吶k縺溘a縺ォ縺輔∪縺悶∪縺ェ繧、繝�Λ繝悶Ν縺ェ繧ェ繝悶ず繧ァ繧ッ繝�
繧堤函謌舌☆繧九◆繧√�繝。繧ス繝�ラ縺梧署萓帙&繧後※縺�∪縺吶€�

:py:func:`iterator.count` 縺ョ菴ソ縺�婿
-----------------------------------

萓九∴縺ー縲√≠繧区擅莉カ繧呈コ€縺溘☆縺セ縺ァ縲∫ケー繧願ソ斐@繧定。後>縺、縺、縲∝ョ溯。悟屓謨ー縺ョ謚頑升縺悟ソ�ヲ√↑蝣エ蜷医↓縺ッ縲�

.. code-block:: python

   i=0
   while True:
     do_something()
     if check_condition(i):
       break
     i +=1

縺ョ繧医≧縺ェ繝代ち繝シ繝ウ縺後h縺丈スソ繧上l縺ヲ縺�∪縺励◆縲ゅ%縺ョ繝代ち繝シ繝ウ繧段tertools縺ョ\ :py:func:`count`\ 繧剃スソ縺」縺ヲ譖ク縺肴鋤縺医k縺ィ

.. code-block:: python

   import itertools

   for i in itertools.count():
     do_something()
     if check_condition(i):
       break

縺ィ隕区�縺�ス「縺ォ譖ク縺肴鋤縺医k縺薙→縺後〒縺阪∪縺吶€�

:py:func:`map`\ 縺ィ\ :py:func:`zip`\ 
-----------------------------------------------------------------
python2縺ァ縺ッ\ :py:mod:`map(None, list1,lisn2,..)`\ 繧箪 :py:mod:`zip(list1,list2,..)`\ 縺ョ莉」繧上j縺ォ菴ソ縺�%縺ィ縺後〒縺阪∪縺励◆縲�
python3縺ァ縺ッ, \ :py:func:`map`\ 縺ョ縺薙�蠖「縺ァ縺ョ蛻ゥ逕ィ縺ッ荳榊庄閭ス縺ォ縺ェ縺」縺ヲ縺�∪縺�. Python2縺ァ繧�\ :py:func:`zip`\ 繧剃スソ縺�h縺�↓譖ク縺肴鋤縺医※縺翫¥縺ケ縺阪〒縺励g縺�€�



:py:mod:`functools` module and :py:meth:`cmp_to_key`  method
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

繝ェ繧ケ繝医�繧ス繝シ繝医Γ繧ス繝�ラ縺ョ菴ソ縺�婿縺ッpython2縺九ipython3縺ァ螟ァ縺阪¥螟峨o縺」縺溘%縺ィ縺ョ縺イ縺ィ縺、縺ァ縺吶€�


python2縺ァ縺ッ list縺ョ\ :py:meth:`.sort`\ 縺ョ繝励Ο繝医ち繧、繝励�縲�

| sort(...)
|      L.sort(cmp=None, key=None, reverse=False) -- stable sort *IN PLACE*;
|      cmp(x, y) -> -1, 0, 1

縺ィ縺ェ縺」縺ヲ縺�∪縺吶€る€壼クク縺ッ譁�ュ励€∵焚蟄励↑縺ゥ縺ョ閾ェ辟カ縺ェ荳ヲ縺ウ縺ォ蠕薙▲縺ヲ謨エ蛻励&縺帙k蝣エ蜷医↓縺ッ縲√→縺上↓蠑墓焚縺ッ蠢�ヲ√≠繧翫∪縺帙s縺後€�
迚ケ蛻・縺ェ繝��繧ソ蝙九d縲∵ィ呎コ也噪縺ァ縺ェ縺���分縺ォ謨エ蛻励&縺孑縺溘>蝣エ蜷医↓縺ッ縲…mp蠑墓焚縺ォ縲√�縺溘▽縺ョ隕∫エ�繧呈ッ碑シ�☆繧九◆繧√�髢「謨ー繧呈欠螳壹@縺セ縺吶€�
縺薙�髢「謨ー縺ッ縺オ縺溘▽縺ョ蠑墓焚縺ョ螟ァ蟆上↓蠕薙▲縺ヲ縲�-1,0,1縺ョ縺�★繧後°繧定ソ斐☆縺薙→繧呈悄蠕�&繧後※縺�∪縺吶€�
(python2.4莉・髯阪〒縺ッpython3縺ィ蜷後§縺上€〔ey髢「謨ー繧剃スソ縺�%縺ィ繧ゅ〒縺阪∪縺吶′縲√◎繧後�縺セ縺溷挨縺ョ縺願ゥア縲ゑシ�

萓九∴縺ー縲�

.. jupyter-kernel:: python2
    :id: python2_kernel

.. jupyter-execute::
   :linenos:
   :emphasize-lines: 2
   :hide-output:

   s=list("python")
   s.sort(lambda x,y: 0 if ord(x) == ord(y) else 1 if ord(x) > ord(y) else -1)
   print(s)

繧恥ython2縺ァ螳溯。後☆繧九→

.. jupyter-execute::
   :hide-code:
      
   s=list("python")
   s.sort(lambda x,y: 0 if ord(x) == ord(y) else 1 if ord(x) > ord(y) else -1)
   print(s)

縺悟�蜉帙&繧後∪縺吶€�

荳€譁ケ縲}ython3縺ァ縺ッ\ :py:meth:`sort`\ 縺ョ繧、繝ウ繧ソ繝輔ぉ繝シ繧ケ縺ッ


| sort(\*, key=None, reverse=False) method of builtins.list instance
|     Sort the list in ascending order and return None.
|     
|     The sort is in-place (i.e. the list itself is modified) and stable (i.e. the
|     order of two equal elements is maintained).
|     
|     If a key function is given, apply it once to each list item and sort them,
|     ascending or descending, according to their function values.
|     
|     The reverse flag can be set to sort in descending order.

縺ィ縺ェ縺」縺ヲ縺�∪縺吶€ゅた繝シ繝磯��r蛻カ蠕。縺吶k縺溘a縺ョcmp縺ォ莉」縺医※縲〔ey縺ィ蜻シ縺ー繧後k髢「謨ー繧堤畑諢上☆繧九%縺ィ縺ォ縺ェ縺」縺ヲ縺�∪縺吶€�
縺薙�\ :py:func:`key`\ 髢「謨ー縺ッ縲√た繝シ繝亥ッセ雎。縺ョ蜷�ヲ∫エ�豈弱↓隧穂セ。縺輔l縲√◎縺ョ邨先棡縺ォ蝓コ縺・縺�※繧ス繝シ繝医′螳溯。後&繧後∪縺吶€�

\ :jupyter-download:script:`click to download python script <python2_kernel>`\ 

\ :jupyter-download:notebook:`click to download jupyter notebook <python2_kernel>`\ 


縺薙�cmp縺ィkey縺ョ驕輔>繧貞精蜿弱☆繧九◆繧√�髢「謨ー\ :py:func:`cmp_to_key`\ 縺�
繝「繧ク繝・繝シ繝ォ\ :py:mod:`functools`\ 縺ョ荳ュ縺ォ逕ィ諢上&繧後※縺�∪縺吶€ゅ%繧後r菴ソ縺」縺ヲ縲∝�縺サ縺ゥ縺ョpython2縺ァ縺ョ繧ス繝シ繝医r
螳溯。後☆繧九↓縺ッ縲∵ャ。縺ョ讒倥↓譖ク縺肴鋤縺医∪縺吶€�

.. jupyter-kernel:: python3
    :id: python3_kernel

.. jupyter-execute::
   :linenos:
   :emphasize-lines: 3

   import functools
   s=list("python")
   s.sort(key=functools.cmp_to_key(lambda x,y: 0 if ord(x) == ord(y) else 1 if ord(x) > ord(y) else -1))
   print(s)


縺薙�讒倥↓縲}ython2縺ァ菴ソ縺」縺ヲ縺�◆\ :py:func:`cmp`\ 髢「謨ー繧偵€}ytyon3縺ァ蜍穂ス懊☆繧九h縺�↓縺吶k縺薙→縺後〒縺阪∪縺吶€�

\ :jupyter-download:script:`click to download python script <python3_kernel>`\ 

\ :jupyter-download:notebook:`click to download jupyter notebook <python3_kernel>`\ 


縺。縺ェ縺ソ縺ォ縲}ython3縺ァ縺ョ :py:func:`sort` 繧� key 繝代Λ繝。繝シ繧ソ繧剃スソ縺」縺ヲ縲∝酔讒倥�繧ス繝シ繝医r陦後≧縺ォ縺ッ

.. jupyter-execute::
   :linenos:
   :emphasize-lines: 3

   s=list("python")
   s.sort(key=lambda x:ord(x))
   print(s)
   
縺ィ縺吶l縺ー蜊∝�縺ァ縺吶€ゅ€€縺薙�讒倥↓縲� :py:func:`cmp` 縺九i :py:func:`key` 縺ク縺ョ蛻�j譖ソ縺医�縲�
縺昴l縺サ縺ゥ蝗ー髮」縺ェ縺薙→縺ァ縺ッ縺ゅj縺セ縺帙s縲ゅ€€:py:func:`cmp_to_key` 縺ッ縺ゅ¥縺セ縺ァ縲}ython2縺ァ菴ソ縺」縺ヲ縺�◆ :py:func:`cmp` 髢「謨ー繧�
縺ゥ縺�@縺ヲ繧ゅ◎縺ョ縺セ縺セ菴ソ縺�◆縺��エ蜷茨シ井セ九∴縺ー螟ァ驥上�繧ス繝シ繧ケ繧ウ繝シ繝峨rpython2縺九ipython3縺ォ讖滓「ー逧�↓螟画鋤縺励◆縺�凾縺ェ縺ゥ�峨↓髯仙ョ壹@縺ヲ縺翫¥縺ョ縺瑚憶縺輔◎縺�〒縺吶€�


reload 蝠城。�
++++++++++++++++

Python2縺ィPython3縺ァ縺ッ縲〉eload縺ョ蜿悶j謇ア縺�′螟峨o縺」縺ヲ縺�∪縺吶€�
Python2縺ァ縺ッreload髢「謨ー縺ッ邨�∩霎シ縺ソ髢「謨ー縺ァ縲“lobal縺ェ繝阪�繝�繧ケ繝壹�繧ケ縺ォ蟄伜惠縺励※縺�∪縺吶′縲�
Python3縺ォ縺翫>縺ヲ縺ッ縲〉eload髢「謨ー縺ッ縲(mportlib繝「繧ク繝・繝シ繝ォ縺ョ荳ュ縺ァ螳夂セゥ縺輔l縺ヲ縺�∪縺吶€�
繧「繝励Μ繧ア繝シ繧キ繝ァ繝ウ縺ョ荳ュ縺ァ縲√Δ繧ク繝・繝シ繝ォ縺ョ繝ェ繝ュ繝シ繝峨r陦後≧縺薙→縺ッ縺サ縺ィ繧薙←閠�∴繧峨l縺ェ縺��縺ァ縲�
蝠城。後↓縺ェ繧九%縺ィ縺ッ辟。縺�°縺ィ諤昴>縺セ縺吶′縲√�繝ュ繧ー繝ゥ繝�髢狗匱荳ュ縺ォ縺ッ縺励�縺励�縲€菫ョ豁」貂医∩縺ョ繝「繧ク繝・繝シ繝ォ繧�
\ ``reload``\ 縺吶k縺薙→縺ォ縺ェ繧九〒縺励g縺�€�

python3縺ァ縺ッ縲� reload髢「謨ー縺ョ蛻ゥ逕ィ縺ォ蜈育ォ九■縲�

.. code-block:: python3
   :caption: Python3縺ァ縺ョreload髢「謨ー縺ョ蛻ゥ逕ィ

   >>> from importlib import reload
   reload
   <function reload at 0x10275e158>

   
縺ィ縺励※reload髢「謨ー繧段mport縺励∪縺吶€ゅ%縺ョ蠕後€�

.. code-block:: python3
   :caption: mymodule繧偵Μ繝ュ繝シ繝峨☆繧九€�
	     
   reload(mymodule)

縺ィ縺励※繧�k縺薙→縺ァ縲}ython2縺ィ蜷後§縺上€√Δ繧ク繝・繝シ繝ォ繧池eload縺励※繧�k縺薙→縺後〒縺阪∪縺吶€�



print 蝠城。�
+++++++++++++++

print 縺ッpython2縺ァ縺ッ **譁�**, python3縺ァ縺ッ **髢「謨ー** 縺ィ縺ェ縺」縺ヲ縺�∪縺吶€�
2to3縺ッ縺薙�驕輔>繧帝←蛻�↓蜿悶j謇ア縺」縺ヲ縲√�繝ュ繧ー繝ゥ繝�繧呈峩譁ー縺励※縺上l縺セ縺吶€�
縺溘□縺励€√%縺ョ蝣エ蜷亥、画峩蠕後�繧ウ繝シ繝峨�python2縺ァ縺ッ蜍穂ス懊@縺ェ縺上↑繧翫∪縺吶€�

縺薙�縺溘a縲∝酔縺倥さ繝シ繝峨�繝シ繧ケ繧恥ython2/python3縺ョ縺ゥ縺。繧峨〒繧ょ虚菴懊&縺帙k縺ォ縺ッ縲�
縺。繧�▲縺ィ蟾・螟ォ縺悟ソ�ヲ√〒縺吶€�

print()髢「謨ー
---------------

縺セ縺壹�縲}ython2縺ァ縺ッ__future__繝「繧ク繝・繝シ繝ォ繧剃スソ縺」縺ヲpython2縺ァ繧�
python3縺ョprint髢「謨ー縺御スソ縺医k繧医≧縺ォ縺吶k縺薙→縺後〒縺阪∪縺吶€�


.. code-block:: python
		 
  from __future__ import print_function
  
__future__ 繝「繧ク繝・繝シ繝ォ縺ョ繧、繝ウ繝昴�繝医�繝輔ぃ繧、繝ォ荳ュ縺ョ譛€蛻昴�螳溯。梧枚縺ァ縺ゅk
蠢�ヲ√′縺ゅk縺ョ縺ァ縲∵ウィ諢上@縺ヲ縺上□縺輔>縲�


sys.stdout/stderr
------------------------------


繧ゅ→繧ゅ→縲}rint譁��縲∵ィ呎コ門�蜉帙↓謖�ョ壹&繧後◆譁�ュ怜�繧貞�蜉帙@縺セ縺吶€�
讓呎コ門�蜉帙♀繧医�讓呎コ悶お繝ゥ繝シ蜃コ蜉帙�\ :py:mod:`sys`\  繝「繧ク繝・繝シ繝ォ縺ョ
\ :py:data:`sys.stdout`\ 縺翫h縺ウ \ :py:data:`stderr`\ 縺ィ縺励※繧「繧ッ繧サ繧ケ
蜿ッ閭ス縺ァ縺吶°繧峨€}rint譁�r菴ソ縺�サ」繧上j縺ォ縲― :py:data:`sys.stdout`\ 縺ゅk縺��
\ :py:data:`sys.sterr`\ 縺ォ譁�ュ怜�繧帝€√j蜃コ縺吶%縺ィ縺ァ縲}rint譁�r菴ソ逕ィ縺励↑縺�h縺�↓繧�
縺ァ縺阪∪縺吶€�

.. code-block:: python
		
   import sys
   
   sys.stdout.write("Hello World")

   

logging 繝「繧ク繝・繝シ繝ォ
------------------------------

縺昴b縺昴b縲√ョ繝舌げ繝。繝�そ繝シ繧ク繧定。ィ遉コ縺吶k縺溘a縺ォprint譁�r菴ソ縺」縺ヲ縺�k縺ェ繧峨€�
\ :py:mod:`logging`\ 縺ェ縺ゥ縺ョ繝「繧ク繝・繝シ繝ォ繧剃スソ縺�Γ繝�そ繝シ繧ク繧定。ィ遉コ縺輔○繧�
縺ョ縺瑚憶縺�〒縺励g縺�€�\ :py:mod:`logging`\ 繧剃スソ縺医�縲�幕逋コ縺ョ繝輔ぉ繝シ繧コ豈弱↓
"Debug", "Info","Warnig"縺ェ縺ゥ縺ョ繝。繝�そ繝シ繧ク繝ャ繝吶Ν繧剃スソ縺」縺ヲ蜃コ蜉帙&繧後k
繝。繝�そ繝シ繧ク繧貞宛蠕。縺吶k縺薙→縺後〒縺阪∪縺吶€� 菴ソ縺�婿縺ッ縲∵ャ。縺ョ:py:mod:`logging` 繝「繧ク繝・繝シ繝ォ縺ョ菴ソ逕ィ萓九r
縺碑ヲァ縺上□縺輔>縲�

.. code-block:: python

   import logging
   logging.getLogger().setLevel(logging.WARNING)
   ...

   logging.warning("縺薙l縺ッ隴ヲ蜻翫〒縺吶€�")

蜃コ蜉帑セ具シ�   
   WARNING:root:縺薙l縺ッ隴ヲ蜻翫〒縺吶€�		
   
:py:mod:`logging` 繝「繧ク繝・繝シ繝ォ縺ォ縺ッ縲�  {'DEBUG':10, 'INFO':20, 'WARNING':30, 'ERROR':40, 'CRITICAL':50, 'FATAL':50}
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exceptions 繝「繧ク繝・繝シ繝ォ
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python3縺ァ縺ッ ``exceptions`` 繝「繧ク繝・繝シ繝ォ縺ッ蟒�ュ「縺輔l縺ヲ縺�∪縺吶€�
python2縺ァ ``exceptions`` 繝「繧ク繝・繝シ繝ォ邨檎罰縺ァ蜻シ縺ウ蜃コ縺僞xception 縺ョ繧ッ繝ゥ繧ケ縺ッ蜈ィ縺ヲ ``__builtins__`` 縺ョ荳ュ縺ォ蜈・縺」縺ヲ縺�∪縺吶�縺ァ縲�
module繧� ``import`` 縺吶k蠢�ヲ√�譛峨j縺セ縺帙s縲�
``exceptions.xxxException`` 縺ョ讒倥↑菴ソ縺�婿繧偵@縺ヲ縺�◆蝣エ蜷医↓縺ッ縲∫峩謗・ ``xxxException`` 繧剃スソ縺�ァ倥↓縺吶l縺ー濶ッ縺�°縺ィ諤昴o繧後∪縺吶€�


maxint
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蠕薙▲縺ヲ縲� ``sys.maxint`` 繧ょサ�ュ「縺輔l縺ヲ縺�∪縺吶€�
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.. [#] (``maxint``, exceptions縺ョ蝠城。後�plex繧恥ython3縺ォ蟇セ蠢懊&縺帙k縺溘a縺ォ蠢�ヲ√〒縺励◆縲ゑシ�


time.mktime縺ョ2000蟷エ蝠城。�(2023/12/15霑ス險�)
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.. code-block:: python2

   >>> time.mktime((2023,12,15,0,0,0,0,0,0))
   1702566000.0
   >>> time.mktime((23,12,15,0,0,0,0,0,0))
   time.mktime((23,12,15,0,0,0,0,0,0))
   1702566000.0
   
縺ィ縺ェ繧翫∪縺吶′縲}ython3.6縺ァ縺ッ縲�

.. code-block:: python3
		
   >>> time.mktime((2023,12,15,0,0,0,0,0,0))
   1702566000.0
   >>> time.mktime((23,12,15,0,0,0,0,0,0))
   -61411339139.0		

python3.9 縺ァ縺ッ縲�

.. code-block:: python3
		
   >>> time.mktime((2023,12,15,0,0,0,0,0,0))
   1702566000.0
   >>> time.mktime((23,12,15,0,0,0,0,0,0))
   Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   OverflowError: mktime argument out of range

縺ィ縺ェ縺」縺ヲ縺�∪縺吶€ゅ→繧ゅ≠繧後€� :py:func:`time.mktime` 縺ァ莠梧。√�蟷エ蜿キ繧偵♀菴ソ縺��蝣エ蜷医�縲∵ー励r縺、縺代∪縺励g縺�€� :py:`python2 縺ョ :py:func:`mktime`\縺ァ縺ッ, :py:data:`year`\ 縺� 69 繧医j蟆上&縺��エ蜷医� :py:data:`year+2000` 縺後€�69莉・荳翫〒100繧医j蟆上&縺��エ蜷医↓縺ッ縲― :py:year:`year+1900`\ 縺袈nix time謠帷ョ玲凾縺ォ蟷エ蜿キ縺ィ縺励※菴ソ繧上l縺セ縺吶€�

python3.9縺ァ縺ッ, :py:func:`mktime` 縺ョyear縺ョ蠑墓焚縺�1900繧医j蟆上&縺��エ蜷医↓縺ッ縲� :py:exc:`OverFlowError` 繧定ソ斐☆繧医≧縺ァ縺吶€�

.. code-block:: python3
		
   >>> time.mktime ((1900, 1, 1,0,0,0,0,0,0 ))
   -2209021200.0

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