#!/usr/bin/env python
# coding: utf-8
# # Table of Contents
#
# # files and dir
# dataなどのfileとのやり取りに関するまとめです．
# # dirでのやり取り
# ## cwd
# In[10]:
import os
cwd = os.getcwd()
cwd
# ## mkdir, cd, ls
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new_dir = 'test_dir'
os.mkdir(new_dir)
os.chdir(new_dir)
os.getcwd()
os.listdir()
# ## globでfull_path表示
# In[15]:
import glob
files = glob.glob(cwd+'/'+ new_dir+'/*')
for file in files:
print(file)
# # fileの読み書き
# In[16]:
os.getcwd()
# ## 単純な読み書き
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data = ['x', 'y']
text = "\n".join(data)
with open("tmp.txt", "w") as f:
f.write(text)
# In[18]:
with open("tmp.txt", "r") as f:
lines = f.readlines()
print(lines)
# In[19]:
for line in lines:
print(line.rstrip())
# ## sprintfからの出力
# In[20]:
data = [['x', 0, 'y', 0],
['x', 1, 'y', 1]]
with open("tmp.txt", "w") as f:
for dd in data:
print(dd)
string = '%4s:%3d, %4s:%3d\n' % tuple(dd)
print(string)
f.writelines(string)
# In[21]:
data = [['x', 0, 'y', 0],
['x', 1, 'y', 1]]
f = open("tmp.txt", "w")
for dd in data:
print(dd)
string = '%4s:%3d, %4s:%3d\n' % tuple(dd)
print(string)
f.writelines(string)
f.close()
# In[22]:
file = open("tmp.txt", "r")
lines = file.readlines()
for line in lines:
print(line.rstrip())
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