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Remove unnecessary stuff in convert_xgboost.py #22

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Remove unnecessary stuff in convert_xgboost.py #22

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34 changes: 14 additions & 20 deletions examples/convert_xgboost.py
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Original file line number Diff line number Diff line change
@@ -1,17 +1,14 @@
"""
Before use this file, install xgboost first
"""
from __future__ import print_function
import sys
import xgboost as xgb
"""
import os
import struct
from ctypes import cdll
from ctypes import c_float, c_uint, c_char_p, c_bool
import sys

import xgboost as xgb

LIB_PATH = "./libgbdt.so"

def convert(input_model, objective, output_file):
def convert(input_model, output_file):
model = xgb.Booster()
model.load_model(input_model)
tmp_file = output_file + ".gbdt_rs.mid"
Expand All @@ -27,11 +24,11 @@ def convert(input_model, objective, output_file):
base_score = struct.unpack('f',f.read(4))[0]
except Exception as e:
print("error: ", e)
return 1
return

if os.path.exists(tmp_file):
print("Intermediate file %s exists. Please remove this file or change your output file path" % tmp_file)
return 1
return

# dump json
model.dump_model(tmp_file, dump_format="json")
Expand All @@ -46,19 +43,16 @@ def convert(input_model, objective, output_file):
except Exception as e:
print("error: ", e)
os.remove(tmp_file)
return 1
return

os.remove(tmp_file)
return 0


if __name__ == "__main__":
if len(sys.argv) != 4:
print("usage: python script input_model_path objective output_file_path")
print("supported booster: gbtree")
print("supported objective: 'reg:linear', 'binary:logistic', 'reg:logistic'," + \
"'binary:logitraw', 'multi:softmax', 'multi:softprob', 'rank:pairwise'")
if len(sys.argv) != 3:
print("usage: python convert_xgboost.py <input_xgboost_model_path> <output_gbdt_model_path>")
print("--supported booster: gbtree")
print("--supported objective: 'reg:linear', 'binary:logistic', 'reg:logistic', "
"'binary:logitraw', 'multi:softmax', 'multi:softprob', 'rank:pairwise'")
exit(1)
convert(sys.argv[1], sys.argv[2], sys.argv[3])


convert(sys.argv[1], sys.argv[2])