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def join_path ( * args ) :
return ' / ' . join ( str ( s ) . rstrip ( ' / ' ) for s in args )
def get_top_percent_list ( num_list , percent ) :
"""
获取列表中前百分之多少的元素
:param num_list:
:param percent:
:return:
"""
if len ( num_list ) == 0 :
top_percent_list = [ ]
else :
# 对imgs_len_list排序
sorted_imgs_len_list = sorted ( num_list , reverse = True )
# 计算 percent 的索引
top_percent_index = int ( len ( sorted_imgs_len_list ) * percent )
# 取前80%的元素
top_percent_list = sorted_imgs_len_list [ : top_percent_index ]
return top_percent_list
def mymax ( alist : list ) :
if len ( alist ) == 0 :
return 0 # 空是0，
else :
return max ( alist )
def parse_bucket_key ( s3_full_path : str ) :
"""
输入 s3://bucket/path/to/my/file.txt
输出 bucket, path/to/my/file.txt
"""
s3_full_path = s3_full_path . strip ( )
if s3_full_path . startswith ( " s3:// " ) :
s3_full_path = s3_full_path [ 5 : ]
if s3_full_path . startswith ( " / " ) :
s3_full_path = s3_full_path [ 1 : ]
bucket , key = s3_full_path . split ( " / " , 1 )
return bucket , key