3 examples of 'pandas to tsv' in Python

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74def toTSV(dbhandle, outfile, statement, remove_none=True):
75 '''execute statement and save as tsv file
76 to disk.
77
78 If *remove_none* is true, empty/NULL values will be output as
79 empty values.
80
81 '''
82 cc = dbhandle.cursor()
83 cc.execute(statement)
84 outfile.write("\t".join([x[0] for x in cc.description]) + "\n")
85
86 def _str(x):
87 if x is None:
88 return ""
89 else:
90 return str(x)
91
92 if remove_none:
93 f = _str
94 else:
95 f = str
96
97 outfile.write("\n".join(
98 ["\t".join(map(f, x)) for x in cc]))
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57def _dataframe_to_txt(writer, dataframe):
58 encoding_writer = codecs.getwriter('utf-8')(writer)
59 for row in dataframe.iterrows():
60 encoding_writer.write("".join(row[1].tolist()))
61 encoding_writer.write('\n')
141def export_tsv_to_sqlite():
142 create_sqlite_tables()
143 conn = open_db()
144 c = conn.cursor()
145
146 filename = 'enwiki.features_damaging.20k_2015.tsv'
147 f = open(filename,'rt')
148 i = 1
149 for row in read_tsv(f):
150 print(i)
151 i = i + 1
152 other_features = pickle.dumps(row[1:-1])
153 c.execute('''INSERT INTO observations
154 (revid, other_features, is_damaging)
155 VALUES (?, ?, ?)''', (row[0], other_features, row[-1]))
156 conn.commit()
157 conn.close()

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