如何將字典格式轉換爲文件？

Question

我有一個

 d= {'fall':['basketball', 'hockey','football'] 
      'spring': ['cross country','tennis','baseball'] 
      'summer':['soccer', 'softball'] 
      etc.... 

我想將它寫入文件。如下所示。

體育在秋季玩：
籃球
曲棍球
足球
體育春季出場：
越野
網球
棒球..

，我至今寫的代碼：

for n in range(len(sp)): 
    print("Sports Played in",i) 
    print(sp[i,'\n']) 

我也想扭轉這種局面如此 所以按字母順序排列如下：

       棒球<差距應該在這裏>春天
       籃球<差距應該在這裏>秋天
       越野<差距應該在這裏>春天

列應該排隊。

def reverse_dict(dct): 
    reverse = {} 
    for key, vals in dct.items(): 
     for val in vals: 
      if val not in reverse: 
       reverse[val] = [] 
      reverse[val].append(key) 
    return reverse 

keys=list(reverse.keys()) 
keys.sort() 
for x in keys: 
    f1out.write("".join(
     str([x, reverse[x]]).strip("[]").replace("[" ,'').replace(",", "'\t'") 
     + '\n')) 

任何想法？僅限Python 3或更高版本。

Answer 1

這應該這樣做：

with open("data1.txt","w") as f: 
    for season in d: 
     f.write("Sports played in {0}\n".format(season)) 
     for sp in d[season]: 
      f.write(sp+'\n') 

Answer 2

我相信這樣做你要求的一切。如果您刪除或註釋掉指定的行，它應該與Python 3一起工作，但是我沒有實際驗證這是否爲真。如果不是，它應該非常接近。

from __future__ import print_function # remove for Python 3 
from collections import defaultdict 
import sys 

GAP = 4 
INDENT = ' ' * 2 
TEST = True # print output rather than write it to files 

d = {'fall': ['basketball', 'hockey', 'football'], 
    'spring': ['cross country', 'tennis', 'baseball', 'archery'], 
    'summer': ['soccer', 'softball', 'archery'] } 

def reverse_dict(dct): 
    reverse = defaultdict(list) 
    for key, vals in list(dct.items()): 
     for val in vals: 
      reverse[val].append(key) 
    return reverse 

rev_d = reverse_dict(d) 

with open("seasonal_sports.txt", "wt") as output: 
    if TEST: output = sys.stdout 
    for season in sorted(d): 
     print('Sports played in {}:'.format(season), file=output) 
     for sport in d[season]: 
      print(INDENT+sport, file=output) 

with open("sport_seasons.txt", "wt") as output: 
    if TEST: output = sys.stdout 
    longest = max(list(map(len, rev_d))) 
    for sport in sorted(rev_d): 
     print('{:<{width}}'.format(sport, width=longest+GAP), 
       ', '.join(rev_d[sport]), file=output)