我有一个基本的批处理文件,用于输入用户:
@echo off
set /p Thing= Type Something:
echo %Thing%
pause
但是,我想使用Python编写的变量传递到批处理文件中。让我们说一个字符串'arg1'
这只是一个基本的例子,但我仍然无法弄明白。以下代码将运行批处理,但'arg1
'没有影响
import subprocess
filepath = r'C:\Users\MattR\Desktop\testing.bat'
subprocess.call([filepath, 'arg1'])
我也试过p = subprocess.Popen([filepath, 'arg1'])
,但批处理文件不能在Python中运行。
我搜索了网络,但是没有一个答案似乎适合我。以下是我也尝试过的一些链接:Example 1,Example 2。我也尝试过其他人,但他们似乎对用户的需求非常具体。
如何开始将Python变量传递到我的批处理文件中?
答案 0 :(得分:5)
如果您希望bash正常工作,您的子流程可能需要与shell一起运行
Actual meaning of 'shell=True' in subprocess
所以
subprocess.Popen([filepath, 'arg1'], shell=True)
如果你想看到输出那么:
item = subprocess.Popen([filepath, 'arg1'], shell=True, stdout=subprocess.PIPE)
for line in item.stdout:
print line
作为进一步的编辑,这是你所追求的一个工作范例:
sub.py:
import subprocess
import random
item = subprocess.Popen(["test.bat", str(random.randrange(0,20))] ,
shell=True, stdout=subprocess.PIPE)
for line in item.stdout:
print line
test.bat的
@echo off
set arg1=%1
echo I wish I had %arg1% eggs!
运行它:
c:\code>python sub.py
I wish I had 8 eggs!
c:\code>python sub.py
I wish I had 5 eggs!
c:\code>python sub.py
I wish I had 9 eggs!
答案 1 :(得分:0)
这是我设法从python到批处理文件调用变量的方式。 首先,制作一个像这样的python文件:
model {
ssd {
num_classes: 2
box_coder {
faster_rcnn_box_coder {
y_scale: 10.0
x_scale: 10.0
height_scale: 5.0
width_scale: 5.0
}
}
matcher {
argmax_matcher {
matched_threshold: 0.5
unmatched_threshold: 0.5
ignore_thresholds: false
negatives_lower_than_unmatched: true
force_match_for_each_row: true
}
}
similarity_calculator {
iou_similarity {
}
}
anchor_generator {
ssd_anchor_generator {
num_layers: 6
min_scale: 0.2
max_scale: 0.95
aspect_ratios: 1.0
aspect_ratios: 2.0
aspect_ratios: 0.5
aspect_ratios: 3.0
aspect_ratios: 0.3333
}
}
image_resizer {
fixed_shape_resizer {
height: 300
width: 300
}
}
box_predictor {
convolutional_box_predictor {
min_depth: 0
max_depth: 0
num_layers_before_predictor: 0
use_dropout: false
dropout_keep_probability: 0.8
kernel_size: 3
box_code_size: 4
apply_sigmoid_to_scores: false
conv_hyperparams {
activation: RELU_6,
regularizer {
l2_regularizer {
weight: 0.00004
}
}
initializer {
truncated_normal_initializer {
stddev: 0.03
mean: 0.0
}
}
batch_norm {
train: true,
scale: true,
center: true,
decay: 0.9997,
epsilon: 0.001,
}
}
}
}
feature_extractor {
type: 'ssd_mobilenet_v2'
min_depth: 16
depth_multiplier: 1.0
use_depthwise: true
conv_hyperparams {
activation: RELU_6,
regularizer {
l2_regularizer {
weight: 0.00004
}
}
initializer {
truncated_normal_initializer {
stddev: 0.03
mean: 0.0
}
}
batch_norm {
train: true,
scale: true,
center: true,
decay: 0.9997,
epsilon: 0.001,
}
}
}
loss {
classification_loss {
weighted_sigmoid {
anchorwise_output: true
}
}
localization_loss {
weighted_smooth_l1 {
anchorwise_output: true
}
}
hard_example_miner {
num_hard_examples: 3000
iou_threshold: 0.99
loss_type: CLASSIFICATION
max_negatives_per_positive: 3
min_negatives_per_image: 3
}
classification_weight: 1.0
localization_weight: 1.0
}
normalize_loss_by_num_matches: true
post_processing {
batch_non_max_suppression {
score_threshold: 1e-8
iou_threshold: 0.6
max_detections_per_class: 100
max_total_detections: 100
}
score_converter: SIGMOID
}
}
}
train_config: {
batch_size: 24
optimizer {
rms_prop_optimizer: {
learning_rate: {
exponential_decay_learning_rate {
initial_learning_rate: 0.004
decay_steps: 800720
decay_factor: 0.95
}
}
momentum_optimizer_value: 0.9
decay: 0.9
epsilon: 1.0
}
}
fine_tune_checkpoint: "ssd_mobilenet_v2_coco_2018_03_29/model.ckpt"
num_steps: 2000
fine_tune_checkpoint_type: "detection"
}
train_input_reader {
label_map_path: "ssd_mobilenet_v2_coco_2018_03_29/label_map.pbtxt"
tf_record_input_reader {
input_path: "data/train.record"
}
}
eval_config {
num_examples: 8000
max_evals: 10
use_moving_averages: false
}
eval_input_reader {
label_map_path: "ssd_mobilenet_v2_coco_2018_03_29/label_map.pbtxt"
shuffle: false
num_readers: 1
tf_record_input_reader {
input_path: "data/val.record"
}
}
第二,创建批处理文件,方法是转到要让python程序运行的文件夹,然后右键单击地图,然后创建新的文本文件。在此文本文件中,编写您想对变量执行的任何操作,并确保使用%...%来调用变量,如下所示:
import os
var1 = "Hello, world!"
os.putenv("VAR1", var1) #This takes the variable from python and makes it a batch one
将此文件另存为批处理文件,如下所示:file>另存为> name_of_file.bat,然后选择:另存为文件:所有文件。
然后在python中调用您的批处理文件,写:
echo %VAR1%
确保所有这些文件都在同一张图中,以便它们起作用! 到这里,这对我有用,希望我可以为某些人提供此评论,因为我搜索了很长时间才发现它是如何工作的。
PS:我也发布在另一个论坛上,所以如果您两次看到此答案,请不要感到困惑。