我正在创建一个脚本，以从扫描的pdf中提取文本，以创建一个JSON字典，以便稍后实现到MongoDB中。我遇到的问题是，通过Textract模块使用tesseract-ocr成功提取了所有文本，但是它正在被python读取，因此PDF上的所有空白都变成了'\ n'，这使得提取文本非常困难。必要的信息。
我尝试使用一堆代码清理它，但是它仍然不是很可读。并消除了所有冒号，我认为这将使识别键和值变得容易得多。
stringedText = str(text)
cleanText = rmStop.replace('\n','')
splitText = re.split(r'\W+', cleanText)
caseingText = [word.lower() for word in splitText]
cleanOne = [word for word in caseingText if word != 'n']
dexStop = cleanOne.index("od260")
dexStart = cleanOne.index("sheet")
clean = cleanOne[dexStart + 1:dexStop]
在处理过的数据上，我仍然有很多不整洁的地方。所以这时idk如何使用它。
这就是我提取数据的方式
text = textract.process(filename, method="tesseract", language="eng")
我也尝试过nltk，它取出了一些数据并使它更易于阅读，但是仍然有很多\ n使数据混乱。
这是nltk代码：
stringedText = str(text)
stop_words = set(stopwords.words('english'))
tokens = word_tokenize(stringedText)
rmStop = [i for i in tokens if not i in ENGLISH_STOP_WORDS]
这是我尝试进行的第一次清理的结果：
['n21', 'feb', '2019', 'nsequence', 'lacz', 'rp', 'n5', 'gat', 'ctc', 'tac', 'cat', 'ggc', 'gca', 'cat', 'ttc', 'ccc', 'gaa', 'aag', 'tgc', '3', 'norder', 'no', '15775199', 'nref', 'no', '207335463', 'n25', 'nmole', 'dna', 'oligo', '36', 'bases', 'nproperties', 'amount', 'of', 'oligo', 'shipped', 'to', 'ntm', '50mm', 'nacl', '66', '8', 'xc2', 'xb0c', '11', '0', '32', '6', 'david', 'cook', 'ngc', 'content', '52', '8', 'd260', 'mmoles', 'kansas', 'state', 'university', 'biotechno', 'nmolecular', 'weight', '10', '965', '1', 'nnmoles']
从那开始，我需要一个类似于以下内容的JSON数组：
"lacz-rp" : {
"Date" : "21-feb-2019",
"Sequence" : "gatctctaccatggcgcacatttccccgaaaagtgc"
"Order No." : "15775199"
"Ref No." : "207335463"
}
等等...我只是不确定该怎么做。我也可以提供原始输出。这是我触摸之前的样子。以上数据是构成完整阵列所需的全部信息。
b' \n\nIDT\nINTEGRATED DNA TECHNOLOGIES,\nOLIGONUCLEOTIDE SPECIFICATION SHEET\n\n \n\n21-Feb-2019\n\nSequence - LacZ-RP\n\n5\'- GAT CTC TAC CAT GGC GCA CAT TTC CCC GAA AAG TGC -3\'\n\nOrder No. 15775199\nref.No. 207335463\n\n25 nmole DNA Oligo, 36 bases\n\n \n\nProperties Amount Of Oligo Shipped To\nTm (50mM NaCl)*:66.8 \xc2\xb0C 11.0= 32.6 DAVID COOK\nGC Content: 52.8% D260 mmoles KANSAS STATE UNIVERSITY-BIOTECHNO.\n\nMolecular Weight: 10,965.1\nnmoles/OD260: 3.0\nug/OD260: 32.6\nExt. Coefficient: 336,200 L/(mole-cm)\n\nSecondary Structure Calcul\n\n \n\nns\nLowest folding free energy (kcal/mole): -3.53 at 25 \xc2\xb0C\n\nStrongest Folding Tm: 46.6 \xc2\xb0C\n\n \n\nOligo Base Types Quantity\n\nDi eo\nModifications and Services Quantity\nStandard Desalting 7\n\nMfg. 1D 289505556\n\n207335463 ~<<IDT\nD.cooK,\n\n2eosoesse 2uren20%9\n\n207335463 ~XIDT\nD.cooK,\n\n \n \n \n\n \n\nINSTRUCTIONS\n\n.d contents may appear as either a translucent film or a white powder.\nice does not affect the quality of the oligo,\n\n\xe2\x80\x9cPlease centrifuge tubes prior to opening. Some of the product may have been\ndislodged during shipping.\n\n\xe2\x80\x9cThe Tm shown takes no account of Mg?* and dNTP concentrations. Use the\nOligoAnalyzer\xc2\xae Program at www.idtdna.com/scitools to calculate accurate Tm for\nyour reaction conditions.\n\nFor 100 |M: add 326 [iL\n\nBURT HALL #207\n\nMANHATTAN, KS 66506\n\nUSA\n\n7855321362\n\nCustomer No. 378741 PO No.06BF3000\n\nDisclaimer\n\nSee on reverse page notes (I) (Il) & (lll) for usage, label\nlicense, and product warranties\n\x0cUse Restrictions: Oligonucleotides and nucleic acid products are manufactured and sold by IDT for the\ncustomer\'s research purposes only. Resale of IDT products requires the express written consent of IDT.\nUnless pursuant to a separate signed agreement by authorized IDT officials, IDT products are not sold\nfor (and have not been approved) for use in any clinical, diagnostic or therapeutic applications.\nObtaining license or approval to use IDT products in proprietary applications or in any non-research\n(clinical) applications is the customer\'s exclusive responsibility. 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答案 0 :(得分：0)
您可以用换行符转换\ n。请使用以下内容；
formatted_text = text.replace('\\n', '\n')
这会将转义的换行替换为输出中的实际换行符。