# 5-level loop, forgive me...
        for xi, xs in enumerate(X):
            for yi, ys in enumerate(Y):
                for zi, zs in enumerate(Z):
                    lx, ly, lz = len(xs), len(ys), len(zs)
                    # construct points
                    xx, yy, zz = custom_meshgrid(xs, ys, zs)
                    world_xyzs = (
                        torch.cat(
                            [xx.reshape(-1, 1), yy.reshape(-1, 1), zz.reshape(-1, 1)],
                            dim=-1,
                        )
                        .unsqueeze(0)
                        .to(count.device)
                    )  # [1, N, 3]

                    # cascading
                    for cas in range(self.cascade):
                        bound = min(2**cas, self.bound)
                        half_grid_size = bound / resolution
                        # scale to current cascade's resolution
                        cas_world_xyzs = world_xyzs * (bound - half_grid_size)

                        # split batch to avoid OOM
                        head = 0
                        while head < B:
                            tail = min(head + S, B)

                            # world2cam transform (poses is c2w, so we need to transpose it. Another transpose is needed for batched matmul, so the final form is without transpose.)
                            cam_xyzs = cas_world_xyzs - poses[
                                head:tail, :3, 3
                            ].unsqueeze(1)
                            cam_xyzs = cam_xyzs @ poses[head:tail, :3, :3]  # [S, N, 3]

                            # query if point is covered by any camera
                            mask_z = cam_xyzs[:, :, 2] > 0  # [S, N]
                            mask_x = (
                                torch.abs(cam_xyzs[:, :, 0])
                                < cx / fx * cam_xyzs[:, :, 2] + half_grid_size * 2
                            )
                            mask_y = (
                                torch.abs(cam_xyzs[:, :, 1])
                                < cy / fy * cam_xyzs[:, :, 2] + half_grid_size * 2
                            )
                            mask = (
                                (mask_z & mask_x & mask_y).sum(0).reshape(lx, ly, lz)
                            )  # [N] --> [lx, ly, lz]

                            # update count
                            count[
                                cas,
                                xi * S : xi * S + lx,
                                yi * S : yi * S + ly,
                                zi * S : zi * S + lz,
                            ] += mask
                            head += S
By Anonymous, 2022-05-13 14:03:28
def _take_items_from_list_and_put_them_into_string(self, list):
    string = ''
    for element in list:
        string += element + ','
    if len(string) > 0 and string[-1] == ',':
        string = string[0:-1]
    return string
By JK, 2017-12-13 13:54:43
def open(self, *filename):
	if len(filename) > 1:
		print(("Usage:\nopen() - opens with the initialized "
			"filename\nopen(filename) - opens with given filename"))
		return 1
	if len(filename) == 1:
		self.filename = filename[0]
	if self.filename is None:
		print("No filename given")
		return 1
	self.struct_p = open_struct(self.last_error, self.error_size, \
		self.filename)
	if self.struct_p is None:
		print("Cannot open file: " + self.filename)
		return 1
	self.load_data()
	return 0
By Anonymous, 2017-12-12 03:26:17
@define
class DedupConfig:
    columns_to_dedup_by: Optional[List]
    time_range_in_minutes: Optional[int]
    timestamp_column_name: Optional[str]
    leave_deduped_samples_in_time_range: Optional[int] = field(default=1)

    def __attrs_post_init__(self):
        if not self.timestamp_column_name:
            raise ValueError(f"timestamp_column_name parameter must be provided")
        if not self.columns_to_dedup_by:
            raise ValueError(f"columns_to_dedup_by parameter must be provided")
        if not self.time_range_in_minutes:
            raise ValueError(f"time_range_in_minutes parameter must be provided")
By Anonymous, 2022-06-12 22:09:32
def MergeThings(config_file, list_of_things, output_dir):
    # read configparser config
    config = read_config(config_file)

    thing_string = ' --option '.join(list_of_things)

    cmd = ''
    cleaner_cmd = ''
    cleaner_cmd = """&& a=%s ; s=`python -c "b=[line.split() for line in  open('$a') if line.startswith('#COMMENT')][0][7:]; print '-ab ' +  ' -ab '.join([b[0]] +  b[-len(b)/2:])"`; java -Xmx1g -XX:ParallelGCThreads=1 -jar /path/to/a/java/command.jar -Z SelectThings -Y %s -W $a -U %s $s""" % (
        os.path.join(output_dir, config.get('PARAMETERS', 'NAME') + '.file.extension'), config.get('FILES' + config.get('PARAMETERS', 'REFERENCE'), 'REF'), os.path.join(output_dir, config.get('PARAMETERS', 'NAME') + '.cleaned.file.extention'))
    cmd = '%s -Xmx1g -XX:ParallelGCThreads=1 -Djava.io.tmpdir=/path/to/temp -jar %s -A doThings -B %s --option %s -otherOptions UNIQUE -C %s %s -D' % (config.get('SCRIPTS', 'JAVA'), config.get(
        'SCRIPTS', 'OTHER_SCRIPT'), config.get('FILES' + config.get('PARAMETERS', 'REFERENCE'), 'REF'), thing_string, os.path.join(output_dir, config.get('PARAMETERS', 'NAME') + '.file.extention.gz'), cleaner_cmd)

    return cmd

When scientists write code, sometimes it's not pretty. It's rather redacted ("thing" was not "thing" in the original). I especially love that the Bash part uses `` rather than $().

By AnonyMouse, 2019-07-17 04:14:11
# Create vpc peering connection
response = ec2.delete_vpc_peering_connection(peer_connection_id)

a part of AWS Landing Zone solution

By Amazon Solutions, 2019-07-10 12:49:42
if HOST == 'AdaLovelace' or HOST == 'vbu' or HOST == 'asus':
    urlpatterns += patterns('',
        (r'^site_media/(?P<path>.*)$', 'django.views.static.serve', {'document_root': MEDIA_ROOT}),
    )
By Kadet, 2016-02-14 16:37:32
def possibilities():
    alphabets=(n,o,r,t,h,e,a,s,u,w,m,y)
    combinations=list()
    for n in range(9,-1,-1):
            for o in range(9,-1,-1):
                    for r in range(9,-1,-1):
                            for t in range(9,-1,-1):
                                    for h in range(9,-1,-1):
                                            for e in range(9,-1,-1):
                                                    for a in range(9,-1,-1):
                                                            for s in range(9,-1,-1):
                                                                    for u in range(9,-1,-1):
                                                                            for w in range(9,-1,-1):
                                                                                    for m in range(9,-1,-1):
                                                                                            for y in range(9,-1,-1):
                                                                                                    if len(set([n,o,r,t,h,e,a,s,u,w,m,y]))==12:
                                                                                                    north=10000*n + 1000*o +100*r +10*t +h
                                                                                                    east=1000*e +100*a +10*s +t
                                                                                                    south=10000*s + 1000*o +100*u +10*t +h
                                                                                                    west=1000*w + 100*e +10*s +t
                                                                                                    earth= 10000*e + 1000*a + 100*r +10*t +h
                                                                                                    if north +east +south +west == earth:
                                                                                                            combinations.append((north,east,south,west,earth))

    return combinations
By Dusk Code, 2018-04-25 11:47:49
product = None
for key in dictionary.keys():
	if product is None:
		product = dictionary[key]
	else:
		product = itertools.product(product, dictionary[key])

product = "{0}".format(list(product))
product = re.sub(r"\), \(+", "], [", product)
product = re.sub(r"\(+", "[", product)
product = product.replace(")]", "]]").replace(")", "")
product = ast.literal_eval(product)

Ok, I have a weird array of objects as output of itertools and I need an array of strings... 1 - Convert the array to string 2 - Clean it up with regex and replace 3 - Convert the string to array 4 - Problem solved

By AnonimaPitoni, 2018-09-06 00:27:34
class vggNet(nn.Module):
    def __init__(self, pretrained=True):
        super(vggNet, self).__init__()
        self.net = models.vgg16(pretrained=True).features.eval()

    def forward(self, x):


        out = []
        for i in range(len(self.net)):
            #x = self.net[i](x)
            x = self.net[i](x)
            #if i in [3, 8, 15, 22, 29]:
            #if i in [15]: #提取1,1/2,1/4的特征图
            if i in [8,15,22]: #提取1,1/2,1/4,1/8,1/16
                # print(self.net[i])
                out.append(x)
        return out

Some creepy feature extraction code I found attached to a research paper.

Features:

  • the "pretrained" parameter it's not actually used.
  • Just works (not so sure about that) with a vgg16, what if I want to use any other model?
  • They provided a spare copy of line 12, in case you lose one.
  • You can select a custom combination of layers by uncommenting the right if statement. A chinese explanation follows. Sometimes.
  • Why use pytorch hooks when you can write a 20+ lines class each time you need it?
By Baichuan Huang, 2021-05-21 19:21:58
try:
    raise
except RuntimeError:
    raise

try this in python3

By FranchuFranchu, 2019-03-14 23:10:03
apps_to_be_deployed = apps_to_be_deployed.strip()
if apps_to_be_deployed.endswith(":"):
    apps_to_be_deployed_length = len(apps_to_be_deployed)
    apps_to_be_deployed_list = list(apps_to_be_deployed)
    apps_to_be_deployed_list[apps_to_be_deployed_length - 1] = ''
    apps_to_be_deployed = "".join(apps_to_be_deployed_list)
By jlo, 2019-09-14 01:16:59

def divide(a, b):
    try:
        return a / b
    except:
        x = 17

My smart exception handling before meeting "pass" :))

By mophix, 2017-12-15 18:13:07
import cv2
import numpy as np

cap = cv2.VideoCapture(0)

while (1):

    _, frame = cap.read()

    hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)

    lower_green = np.array([40, 50, 50])
    upper_green = np.array([80, 102, 200])

    # Threshold the HSV image to get only green colors
    mask = cv2.inRange(hsv, lower_green, upper_green)

    total_pixels = mask.shape[0] * mask.shape[1]
    print "Number of pixels: %", total_pixels

    pixel_counter = 0
    x_counter = 0
    y_counter = 0
    for y in xrange(640):
        for x in xrange(480):
            pixel = mask[x, y]
            if pixel == 255:
                pixel_counter += 1
                x_counter += x
                y_counter += y
    x_center = x_counter / pixel_counter
    y_center = y_counter / pixel_counter
    print x_center, y_center

    cv2.line(frame, (x_center+15, y_center), (x_center+2, y_center), (235, 218, 100), 1)
    cv2.line(frame, (x_center-15, y_center), (x_center-2, y_center), (235, 218, 100), 1)
    cv2.line(frame, (x_center, y_center+15), (x_center, y_center+2), (235, 218, 100), 1)
    cv2.line(frame, (x_center, y_center-15), (x_center, y_center-2), (235, 218, 100), 1)

    cv2.circle(frame, (x_center, y_center), 4, (235, 218, 100), 2)

    cv2.imshow('frame', frame)

    k = cv2.waitKey(5) & 0xFF
    if k == 27:
        break

cv2.destroyAllWindows()

track the green color

By Vik.victory, 2017-06-23 19:11:14
{k: v for d in [{ key: { 0: x[0], } for key in x["name"] } for x in items] for k, v in d.items()}
By nooooooo, 2018-01-02 14:54:31