jupyter notebookのテーマを変更するには、custom.cssを直接編集するという常套手段が存在するが、それだと、後でdefault themeに戻すのに苦労するので、notebook毎にスタイルを変えるのが良いようだ。テーマの変更にはjupyterthemesを使うという手もある。テーマの変更は非常に簡単で、適当なcssをネットで探してきて、それをimportするだけでいい。
from IPython.core.display import display, HTML
a = open("../custom.css", "r")
display(HTML('<style>{}</style>'.format(a.read())))
ネットから直接引っ張ってくるという手もあるが、これだと、将来的にリンク切れが生じた時に困るので、やはり、一旦CSSをダウンロードして使うのがいいようだ。
from IPython.core.display import display, HTML
import urllib.request
r = urllib.request.urlopen('http://bit.ly/1LC7EI7')
display(HTML('<style>{}</style>'.format(r.read().decode("utf-8"))))
----------------------------------------------------------------------- HTTPError Traceback (most recent call last) <ipython-input-2-2fe7acc12f5c> in <module>() 2 import urllib.request 3 # this link is to my Kalman filter book CSS file. ----> 4 r = urllib.request.urlopen('http://bit.ly/1LC7EI7') 5 display(HTML('<style>{}</style>'.format(r.read().decode("utf-8")))) ~/.pyenv/versions/3.6.5/lib/python3.6/urllib/request.py in urlopen(url, data, timeout, cafile, capath, cadefault, context) 221 else: 222 opener = _opener --> 223 return opener.open(url, data, timeout) 224 225 def install_opener(opener): ~/.pyenv/versions/3.6.5/lib/python3.6/urllib/request.py in open(self, fullurl, data, timeout) 530 for processor in self.process_response.get(protocol, []): 531 meth = getattr(processor, meth_name) --> 532 response = meth(req, response) 533 534 return response ~/.pyenv/versions/3.6.5/lib/python3.6/urllib/request.py in http_response(self, request, response) 640 if not (200 <= code < 300): 641 response = self.parent.error( --> 642 'http', request, response, code, msg, hdrs) 643 644 return response ~/.pyenv/versions/3.6.5/lib/python3.6/urllib/request.py in error(self, proto, *args) 562 http_err = 0 563 args = (dict, proto, meth_name) + args --> 564 result = self._call_chain(*args) 565 if result: 566 return result ~/.pyenv/versions/3.6.5/lib/python3.6/urllib/request.py in _call_chain(self, chain, kind, meth_name, *args) 502 for handler in handlers: 503 func = getattr(handler, meth_name) --> 504 result = func(*args) 505 if result is not None: 506 return result ~/.pyenv/versions/3.6.5/lib/python3.6/urllib/request.py in http_error_302(self, req, fp, code, msg, headers) 754 fp.close() 755 --> 756 return self.parent.open(new, timeout=req.timeout) 757 758 http_error_301 = http_error_303 = http_error_307 = http_error_302 ~/.pyenv/versions/3.6.5/lib/python3.6/urllib/request.py in open(self, fullurl, data, timeout) 530 for processor in self.process_response.get(protocol, []): 531 meth = getattr(processor, meth_name) --> 532 response = meth(req, response) 533 534 return response ~/.pyenv/versions/3.6.5/lib/python3.6/urllib/request.py in http_response(self, request, response) 640 if not (200 <= code < 300): 641 response = self.parent.error( --> 642 'http', request, response, code, msg, hdrs) 643 644 return response ~/.pyenv/versions/3.6.5/lib/python3.6/urllib/request.py in error(self, proto, *args) 568 if http_err: 569 args = (dict, 'default', 'http_error_default') + orig_args --> 570 return self._call_chain(*args) 571 572 # XXX probably also want an abstract factory that knows when it makes ~/.pyenv/versions/3.6.5/lib/python3.6/urllib/request.py in _call_chain(self, chain, kind, meth_name, *args) 502 for handler in handlers: 503 func = getattr(handler, meth_name) --> 504 result = func(*args) 505 if result is not None: 506 return result ~/.pyenv/versions/3.6.5/lib/python3.6/urllib/request.py in http_error_default(self, req, fp, code, msg, hdrs) 648 class HTTPDefaultErrorHandler(BaseHandler): 649 def http_error_default(self, req, fp, code, msg, hdrs): --> 650 raise HTTPError(req.full_url, code, msg, hdrs, fp) 651 652 class HTTPRedirectHandler(BaseHandler): HTTPError: HTTP Error 404: Not Found
以下の例のように、CSSを直接セル内に書き込むこともできる。
from IPython.core.display import display, HTML
css = """
.container {
width:100%;
}
div.CodeMirror pre {
font-family: 'YaHei Consolas Hybrid', monospace;
font-size: 20pt;
}
.CodeMirror pre, .output pre {
font-family: Monaco, monospace;
font-size: 20pt
}
"""
display(HTML('<style>{}</style>'.format(css)))
notebookのテーマは簡単に変えられるので、自分の使いやすいようにCSS、あるいは、jsを都度改変していけば、かなり使い勝手の良いthemeが出来上がるだろう。
参考サイトhttps://github.com/
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