無法將字符串與'/'字符進行比較

我有一個2維列表清單，我需要根據第一個記錄字段進行搜索，內容是包含正斜槓字符的字符串。無法將字符串與'/'字符進行比較

測試arg_size時，如果存在正斜槓字符，搜索將始終失敗。爲了排除故障，我已經硬編碼了參數。

在此先感謝。

# -*- coding: UTF-8 -*- 
bolt = {} # create empty dictionary 
thread_geometry = {} # create empty dictionary 

# variables for record position 
size = 0 
dia_in = 1 
dia_mm = 2 
tpi_UNC = 3 
pitch_UNC_in = 4 
pitch_UNC_mm = 5 
tpi_UNF = 6 
pitch_UNF_in = 7 
pitch_UNF_mm = 8 
tpi_UNEF = 9 
pitch_UNEF_in = 10 
pitch_UNEF_mm = 11 

# lookup table for bolt standards,negative values represents NULL 
bolt_table = [ 
     [r"#0", 0.06, 1.524, -1, -1, -1, 80, 0.0125, 0.3175, -1, -1, -1 ], 
     [r"#1", 0.073, 1.8542, 64, 0.015625, 0.3969, 72, 0.013888, 0.3528, -1, -1, -1 ], 
     [r"#2", 0.086, 2.1844, 56, 0.017857, 0.4536, 64, 0.015625, 0.3969, -1, -1, -1 ], 
     [r"#3", 0.099, 2.5146, 48, 0.020833, 0.5292, 56, 0.017857, 0.4536, -1, -1, -1 ], 
     [r"#4", 0.112, 2.8448, 40, 0.025, 0.635, 48, 0.020833, 0.5292, -1, -1, -1 ], 
     [r"#5", 0.125, 3.175, 40, 0.025, 0.635, 44, 0.022727, 0.5773, -1, -1, -1 ], 
     [r"#6", 0.138, 3.5052, 32, 0.03125, 0.7938, 40, 0.025, 0.635, -1, -1, -1 ], 
     [r"#8", 0.164, 4.1656, 32, 0.03125, 0.7938, 36, 0.027778, 0.7056, -1, -1, -1 ], 
     [r"#10", 0.19, 4.826, 24, 0.041667, 1.0583, 32, 0.03125, 0.7938, -1, -1, -1 ], 
     [r"#12", 0.216, 5.4864, 24, 0.041667, 1.0583, 28, 0.035714, 0.9071, 32, 0.03125, 0.7938 ], 
     [r"1/4", 0.25, 6.35, 20, 0.05, 1.27, 28, 0.035714, 0.9071, 32, 0.03125, 0.7938 ], 
     [r"5⁄16", 0.3125, 7.9375, 18, 0.055556, 1.4111, 24, 0.041667, 1.0583, 32, 0.03125, 0.7938 ], 
     [ur"3⁄8", 0.375, 9.525, 16, 0.0625, 1.5875, 24, 0.041667, 1.0583, 32, 0.03125, 0.7938 ], 
     [r"7⁄16", 0.4375, 11.1125, 14, 0.071428, 1.8143, 20, 0.05, 1.27, 28, 0.035714, 0.9071 ], 
     [r"1⁄2", 0.5, 12.7, 13, 0.076923, 1.9538, 20, 0.05, 1.27, 28, 0.035714, 0.9071 ], 
     [r"9⁄16", 0.5625, 14.2875, 12, 0.083333, 2.1167, 18, 0.055556, 1.4111, 24, 0.041667, 1.0583 ], 
     [r"5⁄8", 0.625, 15.875, 11, 0.090909, 2.3091, 18, 0.055556, 1.4111, 24, 0.041667, 1.0583 ], 
     [r"3⁄4", 0.75, 19.05, 10, 0.1, 2.54, 16, 0.0625, 1.5875, 20, 0.05, 1.27 ], 
     [r"7⁄8", 0.875, 22.225, 9, 0.111111, 2.8222, 14, 0.071428, 1.8143, 20, 0.05, 1.27 ], 
     [r"1", 1, 25.4, 8, 0.125, 3.175, 12, 0.083333, 2.1167, 20, 0.05, 1.27 ], 
     ] 



# # # # ------------------- Main -------------------------------------------- # # # # 


# Get bolt parameters 
# if the no value is entered the value will be NULL or set to a default 

arg_unit = 'mm' 
if arg_unit.lower() == 'mm': 
    bolt['unit'] = 'mm' 
else: 
    bolt['unit'] = 'in' 

arg_size = '3/8' 
for x in bolt_table: 
    if str(x[size]) == str(arg_size): 
     bolt['size'] = str(arg_size) 

arg_length = 2.5 
if arg_length > 0: 
    bolt['length'] = arg_length 
else: 
    sys.stderr.write(" Bolt length is a required field!!!") 
    sys.exit() 

arg_thread = 'UNC' 
if arg_thread.upper() == 'UNC' or arg_thread.upper() == 'UNF' or arg_thread.upper() == 'UNEF': 
    bolt['thread'] = arg_thread.upper() 

print bolt.viewitems()

來源

2013-07-28 salatwork

當我看到在調試器中的值我看到價值在列表中從'3/8'u'3 \ u482'更改。我試圖在r，u和ur這兩個字符串的前面加上前綴，但是我得到了相同的結果。 – salatwork

您的鍵盤上的斜線與您桌子上的斜線不同。有不同的符號。修改你的表來代替Unicode的斜槓爲ASCII斜線或使用來自How to read Unicode input and compare Unicode strings in Python?

標準化解決方案，我想你複製粘貼值表從網頁）

來源

2013-07-28 21:14:53 eri

是的，我從維基百科網站複製了表格。我回去重新輸入斜線，現在代碼正常工作。謝謝。 – salatwork

@ user2626658，所以接受答案 – eri

無法將字符串與'/'字符進行比較

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