Laser filter error: ValueError: could not convert string to float: b''

[eu9ene]

Filtering fails on some datasets, for example, en-ru OPUS XLEnt

[task 2024-04-17T19:48:57.880Z] [11/12:laser_similarity] Traceback (most recent call last):
[task 2024-04-17T19:48:57.881Z] [11/12:laser_similarity]   File "/builds/worker/.local/lib/python3.10/site-packages/opuscleaner/filters/../threshold.py", line 142, in wrapper
[task 2024-04-17T19:48:57.881Z] [11/12:laser_similarity]     return fn(*args, **kwargs)
[task 2024-04-17T19:48:57.881Z] [11/12:laser_similarity]   File "/builds/worker/.local/lib/python3.10/site-packages/opuscleaner/filters/../threshold.py", line 192, in threshold_scores
[task 2024-04-17T19:48:57.881Z] [11/12:laser_similarity]     item[1].score = float(fchild.readline())
[task 2024-04-17T19:48:57.881Z] [11/12:laser_similarity] ValueError: could not convert string to float: b''

Cleaning config:

{
  "version": 1,
  "files": [
    "XLEnt-v1.2.en-ru.en.gz",
    "XLEnt-v1.2.en-ru.ru.gz"
  ],
 "filters": [
    {
      "filter": "remove_empty_lines",
      "parameters": {},
      "language": null
    },
    {
      "filter": "normalize_whitespace",
      "parameters": {
        "COLLAPSE": true
      },
      "language": "en"
    },
    {
      "filter": "normalize_whitespace",
      "parameters": {
        "COLLAPSE": true
      },
      "language": "ru"
    },
    {
      "filter": "deescape-special-chars",
      "parameters": {
        "LANG1": "other"
      },
      "language": "en"
    },
    {
      "filter": "deescape-special-chars",
      "parameters": {
        "LANG1": "other"
      },
      "language": "ru"
    },
    {
      "filter": "remove_frequent_patterns",
      "parameters": {
        "PATTERN_FILE": "remove_frequent_patterns.txt"
      },
      "language": null
    },
    {
      "filter": "max_length",
      "parameters": {
        "MAXLENGTH": 150,
        "MINLENGTH": 1
      },
      "language": null
    },
    {
      "filter": "max_word_length",
      "parameters": {
        "MAXWORDLENGTH": 150
      },
      "language": null
    },
    {
      "filter": "fix_wiki",
      "parameters": {
        "ALWAYS": false,
        "FOOTNOTES": true,
        "URLS": true,
        "WIKILINKS": true,
        "CODE": true,
        "HEADINGS": true,
        "REMOVEEMPTYLINES": true
      },
      "language": null
    },
    {
      "filter": "alpha_ratio",
      "parameters": {
        "LANG1": "en",
        "LANG2": "ru",
        "SRCWORDRAT": 0.4,
        "TRGWORDRAT": 0.4,
        "SRCALPHARAT": 0.5,
        "TRGALPHARAT": 0.5,
        "DEBUG": false
      },
      "language": null
    },
    {
      "filter": "src_trg_ratio",
      "parameters": {
        "RATIO": 0.5,
        "LOG": false
      },
      "language": null
    },
    {
      "filter": "num_mismatch",
      "parameters": {
        "RATIO": 1,
        "DEBUG": false
      },
      "language": null
    },
    {
      "filter": "fasttext_filter",
      "parameters": {
        "FASTTEXT_MODEL_TYPE": "large",
        "LANG1": "en",
        "LANG2": "ru"
      },
      "language": null
    },
    {
      "filter": "laser_similarity",
      "parameters": {
        "THRESHOLD": "0.85",
        "SRCLANG": "en",
        "TGTLANG": "ru"
      },
      "language": null
    }
  ]

}