我想从 python 脚本生成几个笔记本。是否有编写 IPython 笔记本的 API?
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1 回答
4
有,你可以这样做:
import io
from IPython.nbformat import current
def convert(py_file, ipynb_file):
with io.open(py_file, 'r', encoding='utf-8') as f:
notebook = current.reads(f.read(), format='py')
with io.open(ipynb_file, 'w', encoding='utf-8') as f:
current.write(notebook, f, format='ipynb')
convert('test.py', 'test.ipynb')
但它并不那么聪明,它会将 python 文件中的所有代码放入一个 IPython Notebook 单元中。但是你总是可以做一点解析。
import io
import re
from IPython.nbformat import current
def parse_into_cells(py_file):
with io.open(py_file, 'r', encoding='utf-8') as f:
data = f.readlines()
in_cell = True
cell = ''
for line in data:
if line.rstrip() == '':
# If a blank line occurs I'm out of the current cell
in_cell = False
elif re.match('^\s+', line):
# Indentation, so nope, I'm not out of the current cell
in_cell = True
cell += line
else:
# Code at the beginning of the line, so if I'm in a cell just
# append it, otherwise yield out the cell and start a new one
if in_cell:
cell += line
else:
yield cell.strip()
cell = line
in_cell = True
if cell != '':
yield cell.strip()
def convert(py_file, ipynb_file):
# Create an empty notebook
notebook = current.reads('', format='py')
# Add all the parsed cells
notebook['worksheets'][0]['cells'] = list(map(current.new_code_cell,
parse_into_cells(py_file)))
# Save the notebook
with io.open(ipynb_file, 'w', encoding='utf-8') as f:
current.write(notebook, f, format='ipynb')
convert('convert.py', 'convert.ipynb')
编辑:解释解析
在前面的代码中,只要在模块级指令(函数、变量或类定义、导入等)之前出现空行,就会触发单元拆分。那就是每当我看到一行没有缩进并且前面有一个空行时)。所以:
import time
import datetime
将只是一个单元格,但是:
import time
import datetime
将是两个单元格,并且还
class Test(objet):
def __init__(self, x):
self.x = x
def show(self):
print(self.x)
class Foo(object):
pass
将是两个单元格,因为只有两个顶级定义(未缩进的行)前面有一个空行(文件中的第一行被认为前面有一个空行,因为它必须开始一个新的单元格) .
于 2013-08-01T18:14:18.817 回答