[英]Pretty printing a list in a tabular format
使用 Python 2.4,如何以漂亮的表格格式打印列表?
我的清單采用以下格式。
mylist=[(('VAL1', 'VAL2', 'VAL3', 'VAL4', 'VAL5', 'VAL6'), AGGREGATE_VALUE)]
我試過pprint
,但它不會以表格格式打印結果。
編輯:我想查看以下格式的 output:
VAL1 VAL2 VAL3 VAL4 VAL5 VAL6 AGGREGATE_VALUE
該表應考慮到可變項目長度並仍以適當的縮進打印。
mylist = [ ( ('12', '47', '4', '574862', '58', '7856'), 'AGGREGATE_VALUE1'),
( ('2', '75', '757', '8233', '838', '47775272785'), 'AGGREG2'),
( ('4144', '78', '78965', '778', '78578', '2'), 'AGGREGATE_VALUE3')]
longg = dict.fromkeys((0,1,2,3,4,5,6),0)
for tu,x in mylist:
for i,el in enumerate(tu):
longg[i] = max(longg[i],len(str(el)))
longg[6] = max(longg[6],len(str(x)))
fofo = ' '.join('%'+str(longg[i])+'s' for i in xrange(0,7))
print '\n'.join(fofo % (a,b,c,d,e,f,g) for (a,b,c,d,e,f),g in mylist)
結果
12 47 4 574862 58 7856 AGGREGATE_VALUE1
2 75 757 8233 838 47775272785 AGGREG2
4144 78 78965 778 78578 2 AGGREGATE_VALUE3
不知道這是否滿足您的需求
使用帶模運算符 (%) 的字符串格式以恆定長度打印, '%6s'以恆定長度 6 右對齊, ' %-6s' 以恆定長度 6 左對齊。
你會在這里找到精度
但是指定一個恆定的長度來在字符串的末尾打印一些東西是沒有意義的,因為在這種情況下它有點自然左對齊。 然后:
longg = dict.fromkeys((0,1,2,3,4,5,),0)
for tu,x in mylist:
for i,el in enumerate(tu):
longg[i] = max(longg[i],len(str(el)))
fofo = ' '.join('%'+str(longg[i])+'s' for i in xrange(0,6)) + ' %s'
print '\n'.join(fofo % (a,b,c,d,e,f,g) for (a,b,c,d,e,f),g in mylist)
mylist = [ ( (12, 47, 4, 574862, 58, 7856), 'AGGREGATE_VALUE1'),
( (2, 75, 757, 8233, 838, 47775272785), 'AGGREG2'),
( (4144, 78, 78965, 778, 78578, 2), 'AGGREGATE_VALUE3')]
longg = dict.fromkeys((0,1,2,3,4,5),0)
for tu,_ in mylist:
longg.update(( i, max(longg[i],len(str(el))) ) for i,el in enumerate(tu))
fofo = ' '.join('%%%ss' % longg[i] for i in xrange(0,6)) + ' %s'
print '\n'.join(fofo % (a,b,c,d,e,f,g) for (a,b,c,d,e,f),g in mylist)
mylist = [ ( (12, 47, 4, 574862, 58, 7856), 'AGGREGATE_VALUE1'),
( (2, 75, 757, 8233, 838, 47775272785), 'AGGREG2'),
( (4144, 78, 78965, 778, 78578, 2), 'AGGREGATE_VALUE3')]
header = ('Price1','Price2','reference','XYD','code','resp','AGGREG values')
longg = dict(zip((0,1,2,3,4,5,6),(len(str(x)) for x in header)))
for tu,x in mylist:
longg.update(( i, max(longg[i],len(str(el))) ) for i,el in enumerate(tu))
longg[6] = max(longg[6],len(str(x)))
fofo = ' | '.join('%%-%ss' % longg[i] for i in xrange(0,7))
print '\n'.join((fofo % header,
'-|-'.join( longg[i]*'-' for i in xrange(7)),
'\n'.join(fofo % (a,b,c,d,e,f,g) for (a,b,c,d,e,f),g in mylist)))
結果
Price1 | Price2 | reference | XYD | code | resp | AGGREG values
-------|--------|-----------|--------|-------|-------------|-----------------
12 | 47 | 4 | 574862 | 58 | 7856 | AGGREGATE_VALUE1
2 | 75 | 757 | 8233 | 838 | 47775272785 | AGGREG2
4144 | 78 | 78965 | 778 | 78578 | 2 | AGGREGATE_VALUE3
請注意,使用 Python 2.6 中引入的字符串方法format()會更容易進行這種格式化
試試 texttable 模塊。
文檔: http://foutaise.org/code/texttable/
PyPi: https://pypi.python.org/pypi?name=texttable&:action=display
也許是這樣的:
def tabprint(inp):
for list_el in mylist:
st = ''
for word in list_el[0]:
st += word + '\t'
st += str(list_el[1])
print st
從您的示例 output 看起來,“表格”可能意味着選項卡。
如果這是正確的,這似乎工作:
mylist=[(('VAL1', 'VAL2', 'VAL3', 'VAL4', 'VAL5', 'VAL6'), 'AGGREGATE_VALUE')]
def flatten(arg):
if not hasattr(arg, '__iter__'):
yield arg
else:
for i in arg:
for j in flatten(i):
yield j
print '\t'.join(flatten(mylist))
哪個輸出:
VAL1 VAL2 VAL3 VAL4 VAL5 VAL6 AGGREGATE_VALUE
對於任意項目數和任意行數,您可以使用:
print "\n".join (map (lambda (x, y): "%s\t%s" % ("\t".join (x), y), mylist) )
例如對於輸入
mylist = [ ( ('VAL11', 'VAL12', 'VAL13', 'VAL14', 'VAL15', 'VAL16'), 'AGGREGATE_VALUE1'),
( ('VAL21', 'VAL22', 'VAL23', 'VAL24', 'VAL25', 'VAL26'), 'AGGREGATE_VALUE2'),
( ('VAL31', 'VAL32', 'VAL33', 'VAL34', 'VAL35', 'VAL36'), 'AGGREGATE_VALUE3'),]
它產生:
VAL11 VAL12 VAL13 VAL14 VAL15 VAL16 AGGREGATE_VALUE1
VAL21 VAL22 VAL23 VAL24 VAL25 VAL26 AGGREGATE_VALUE2
VAL31 VAL32 VAL33 VAL34 VAL35 VAL36 AGGREGATE_VALUE3
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