def exercise_handler(request, exercise, prev=None, next=None, **related_videos):
"""
Display an exercise
"""
lang = request.session[settings.LANGUAGE_COOKIE_NAME]
exercise_root = os.path.join(settings.KHAN_EXERCISES_DIRPATH, "exercises")
exercise_file = exercise["slug"] + ".html"
exercise_template = exercise_file
exercise_localized_template = os.path.join(lang, exercise_file)
# Get the language codes for exercise teplates that exist
exercise_path = partial(lambda lang, slug, eroot: os.path.join(eroot, lang, slug + ".html"), slug=exercise["slug"], eroot=exercise_root)
code_filter = partial(lambda lang, eroot, epath: os.path.isdir(os.path.join(eroot, lang)) and os.path.exists(epath(lang)), eroot=exercise_root, epath=exercise_path)
available_langs = set(["en"] + [lang_code for lang_code in os.listdir(exercise_root) if code_filter(lang_code)])
# Return the best available exercise template
exercise_lang = select_best_available_language(request.language, available_codes=available_langs)
if exercise_lang == "en":
exercise_template = exercise_file
else:
exercise_template = exercise_path(exercise_lang)[(len(exercise_root) + 1):]
context = {
"exercise": exercise,
"title": exercise["title"],
"exercise_template": exercise_template,
"exercise_lang": exercise_lang,
"related_videos": [v for v in related_videos.values() if v["available"]],
"prev": prev,
"next": next,
}
return context
def exercise_handler(request, exercise, prev=None, next=None, **related_videos):
"""
Display an exercise
"""
lang = request.session[settings.LANGUAGE_COOKIE_NAME]
exercise_root = os.path.join(settings.KHAN_EXERCISES_DIRPATH, "exercises")
exercise_file = exercise["slug"] + ".html"
exercise_template = exercise_file
exercise_localized_template = os.path.join(lang, exercise_file)
# Get the language codes for exercise teplates that exist
exercise_path = partial(lambda lang, slug, eroot: os.path.join(eroot, lang, slug + ".html"), slug=exercise["slug"], eroot=exercise_root)
code_filter = partial(lambda lang, eroot, epath: os.path.isdir(os.path.join(eroot, lang)) and os.path.exists(epath(lang)), eroot=exercise_root, epath=exercise_path)
available_langs = set(["en"] + [lang_code for lang_code in os.listdir(exercise_root) if code_filter(lang_code)])
# Return the best available exercise template
exercise_lang = select_best_available_language(request.language, available_codes=available_langs)
if exercise_lang == "en":
exercise_template = exercise_file
else:
exercise_template = exercise_path(exercise_lang)[(len(exercise_root) + 1):]
context = {
"exercise": exercise,
"title": exercise["title"],
"exercise_template": exercise_template,
"exercise_lang": exercise_lang,
"related_videos": [v for v in related_videos.values() if v["available"]],
"prev": prev,
"next": next,
}
return context
def video_handler(request, video, format="mp4", prev=None, next=None):
if not video["available"]:
if request.is_admin:
# TODO(bcipolli): add a link, with querystring args that auto-checks this video in the topic tree
messages.warning(request, _("This video was not found! You can download it by going to the Update page."))
elif request.is_logged_in:
messages.warning(request, _("This video was not found! Please contact your teacher or an admin to have it downloaded."))
elif not request.is_logged_in:
messages.warning(request, _("This video was not found! You must login as an admin/teacher to download the video."))
# Fallback mechanism
available_urls = dict([(lang, avail) for lang, avail in video["availability"].iteritems() if avail["on_disk"]])
if video["available"] and not available_urls:
vid_lang = "en"
messages.success(request, "Got video content from %s" % video["availability"]["en"]["stream"])
else:
vid_lang = select_best_available_language(request.language, available_codes=available_urls.keys())
context = {
"video": video,
"title": video["title"],
"num_videos_available": len(video["availability"]),
"selected_language": vid_lang,
"video_urls": video["availability"].get(vid_lang),
"subtitle_urls": video["availability"].get(vid_lang, {}).get("subtitles"),
"prev": prev,
"next": next,
"backup_vids_available": bool(settings.BACKUP_VIDEO_SOURCE),
}
return context
def video_handler(request, video, format="mp4", prev=None, next=None):
if not video["available"]:
if request.is_admin:
# TODO(bcipolli): add a link, with querystring args that auto-checks this video in the topic tree
messages.warning(request, _("This video was not found! You can download it by going to the Update page."))
elif request.is_logged_in:
messages.warning(request, _("This video was not found! Please contact your teacher or an admin to have it downloaded."))
elif not request.is_logged_in:
messages.warning(request, _("This video was not found! You must login as an admin/teacher to download the video."))
# Fallback mechanism
available_urls = dict([(lang, avail) for lang, avail in video["availability"].iteritems() if avail["on_disk"]])
if video["available"] and not available_urls:
vid_lang = "en"
messages.success(request, "Got video content from %s" % video["availability"]["en"]["stream"])
else:
vid_lang = select_best_available_language(request.language, available_codes=available_urls.keys())
context = {
"video": video,
"title": video["title"],
"num_videos_available": len(video["availability"]),
"selected_language": vid_lang,
"video_urls": video["availability"].get(vid_lang),
"subtitle_urls": video["availability"].get(vid_lang, {}).get("subtitles"),
"prev": prev,
"next": next,
"backup_vids_available": bool(settings.BACKUP_VIDEO_SOURCE),
}
return context
def get_content_data(request, content_id=None):
content_cache = get_content_cache()
content = content_cache.get(content_id, None)
if not content:
return None
content_lang = i18n.select_best_available_language(
request.language, available_codes=content.get("languages", [])) or ""
urls = content.get("lang_data_" + content_lang, None)
if not urls:
if request.is_admin:
# TODO(bcipolli): add a link, with querystring args that auto-checks this content in the topic tree
messages.warning(
request,
_("This content was not found! You can download it by going to the Update page."
))
elif request.is_logged_in:
messages.warning(
request,
_("This content was not found! Please contact your teacher or an admin to have it downloaded."
))
elif not request.is_logged_in:
messages.warning(
request,
_("This content was not found! You must login as an admin/teacher to download the content."
))
content = content.copy()
content["content_urls"] = urls
content["selected_language"] = content_lang
content["title"] = _(content["title"])
content["description"] = _(content.get("description", ""))
return content
def get_exercise_data(request, exercise_id=None):
exercise = get_exercise_cache().get(exercise_id, None)
if not exercise:
return None
exercise_root = os.path.join(settings.KHAN_EXERCISES_DIRPATH)
exercise_file = exercise["slug"] + ".html"
exercise_template = exercise_file
# Get the language codes for exercise templates that exist
exercise_path = partial(
lambda lang, slug, eroot: os.path.join(eroot, lang, slug + ".html"),
slug=exercise["slug"],
eroot=exercise_root)
code_filter = partial(lambda lang, eroot, epath: os.path.isdir(
os.path.join(eroot, lang)) and os.path.exists(epath(lang)),
eroot=exercise_root,
epath=exercise_path)
available_langs = set(["en"] + [
lang_code
for lang_code in os.listdir(exercise_root) if code_filter(lang_code)
])
# Return the best available exercise template
exercise_lang = i18n.select_best_available_language(
request.language, available_codes=available_langs)
if exercise_lang == "en":
exercise_template = exercise_file
else:
exercise_template = exercise_path(exercise_lang)[(len(exercise_root) +
1):]
exercise["lang"] = exercise_lang
exercise["template"] = exercise_template
return exercise
def get_content_cache(force=False, annotate=False, language=None):
if not language:
language = django_settings.LANGUAGE_CODE
global CONTENT
if CONTENT is None:
CONTENT = {}
if CONTENT.get(language) is None:
content = None
if settings.DO_NOT_RELOAD_CONTENT_CACHE_AT_STARTUP and not force:
content = softload_sqlite_cache(settings.CONTENT_CACHE_FILEPATH)
if content:
CONTENT[language] = content
return CONTENT[language]
else:
if settings.DO_NOT_RELOAD_CONTENT_CACHE_AT_STARTUP:
call_command("create_content_db")
content = softload_sqlite_cache(settings.CONTENT_CACHE_FILEPATH)
else:
content = softload_json(settings.CONTENT_FILEPATH, logger=logging.debug, raises=False)
CONTENT[language] = content
annotate = True
if annotate:
# Loop through all content items and put thumbnail urls, content urls,
# and subtitle urls on the content dictionary, and list all languages
# that the content is available in.
try:
contents_folder = os.listdir(django_settings.CONTENT_ROOT)
except OSError:
contents_folder = []
subtitle_langs = {}
if os.path.exists(i18n.get_srt_path()):
for (dirpath, dirnames, filenames) in os.walk(i18n.get_srt_path()):
# Only both looking at files that are inside a 'subtitles' directory
if os.path.basename(dirpath) == "subtitles":
lc = os.path.basename(os.path.dirname(dirpath))
for filename in filenames:
if filename in subtitle_langs:
subtitle_langs[filename].append(lc)
else:
subtitle_langs[filename] = [lc]
for key, content in CONTENT[language].iteritems():
default_thumbnail = create_thumbnail_url(content.get("id"))
dubmap = i18n.get_id2oklang_map(content.get("id"))
if dubmap:
content_lang = i18n.select_best_available_language(language, available_codes=dubmap.keys()) or ""
if content_lang:
dubbed_id = dubmap.get(content_lang)
format = content.get("format", "")
if (dubbed_id + "." + format) in contents_folder:
content["available"] = True
thumbnail = create_thumbnail_url(dubbed_id) or default_thumbnail
content["content_urls"] = {
"stream": django_settings.CONTENT_URL + dubmap.get(content_lang) + "." + format,
"stream_type": "{kind}/{format}".format(kind=content.get("kind", "").lower(), format=format),
"thumbnail": thumbnail,
}
elif django_settings.BACKUP_VIDEO_SOURCE:
content["available"] = True
content["content_urls"] = {
"stream": django_settings.BACKUP_VIDEO_SOURCE.format(youtube_id=dubbed_id, video_format=format),
"stream_type": "{kind}/{format}".format(kind=content.get("kind", "").lower(), format=format),
"thumbnail": django_settings.BACKUP_VIDEO_SOURCE.format(youtube_id=dubbed_id, video_format="png"),
}
else:
content["available"] = False
else:
content["available"] = False
else:
content["available"] = False
# Get list of subtitle language codes currently available
subtitle_lang_codes = subtitle_langs.get("{id}.srt".format(id=content.get("id")), [])
# Generate subtitle URLs for any subtitles that do exist for this content item
subtitle_urls = [{
"code": lc,
"url": django_settings.STATIC_URL + "srt/{code}/subtitles/{id}.srt".format(code=lc, id=content.get("id")),
"name": i18n.get_language_name(lc)
} for lc in subtitle_lang_codes]
# Sort all subtitle URLs by language code
content["subtitle_urls"] = sorted(subtitle_urls, key=lambda x: x.get("code", ""))
with i18n.translate_block(language):
content["selected_language"] = content_lang
content["title"] = _(content["title"])
content["description"] = _(content.get("description")) if content.get("description") else ""
CONTENT[language][key] = content
if settings.DO_NOT_RELOAD_CONTENT_CACHE_AT_STARTUP:
try:
CONTENT[language].commit()
except IOError as e:
logging.warn("Annotated content cache file failed in saving with error {e}".format(e=e))
return CONTENT[language]
def get_exercise_cache(force=False, language=None):
if not language:
language = django_settings.LANGUAGE_CODE
global EXERCISES
if EXERCISES is None:
EXERCISES = {}
if EXERCISES.get(language) is None:
if settings.DO_NOT_RELOAD_CONTENT_CACHE_AT_STARTUP and not force:
exercises = softload_json(
cache_file_path("exercises_{0}.json".format(language)),
logger=logging.debug,
raises=False
)
if exercises:
EXERCISES[language] = exercises
return EXERCISES[language]
EXERCISES[language] = softload_json(settings.EXERCISES_FILEPATH, logger=logging.debug, raises=False)
# English-language exercises live in application space, translations in user space
if language == "en":
exercise_root = os.path.join(settings.KHAN_EXERCISES_DIRPATH, "exercises")
else:
exercise_root = i18n.get_localized_exercise_dirpath(language)
if os.path.exists(exercise_root):
try:
exercise_templates = os.listdir(exercise_root)
except OSError:
exercise_templates = []
else:
exercise_templates = []
for exercise in EXERCISES[language].values():
exercise_file = exercise["name"] + ".html"
exercise_template = exercise_file
exercise_lang = "en"
# The central server doesn't have an assessment item database
if django_settings.CENTRAL_SERVER:
available = False
elif exercise.get("uses_assessment_items", False):
available = False
items = []
for item in exercise.get("all_assessment_items", []):
item = json.loads(item)
if get_assessment_item_data(request=None, assessment_item_id=item.get("id")):
items.append(item)
available = True
exercise["all_assessment_items"] = items
else:
available = exercise_template in exercise_templates
# Get the language codes for exercise templates that exist
# Try to minimize the number of os.path.exists calls (since they're a bottleneck) by using the same
# precedence rules in i18n.select_best_available_languages
available_langs = set(["en"] + [language] * available)
# Return the best available exercise template
exercise_lang = i18n.select_best_available_language(language, available_codes=available_langs)
if exercise_lang == "en":
exercise_template = exercise_file
else:
exercise_template = os.path.join(exercise_lang, exercise_file)
with i18n.translate_block(language):
exercise["available"] = available
exercise["lang"] = exercise_lang
exercise["template"] = exercise_template
exercise["title"] = _(exercise.get("title", ""))
exercise["description"] = _(exercise.get("description", "")) if exercise.get("description") else ""
if settings.DO_NOT_RELOAD_CONTENT_CACHE_AT_STARTUP:
try:
with open(cache_file_path("exercises_{0}.json".format(language)), "w") as f:
json.dump(EXERCISES[language], f)
except IOError as e:
logging.warn("Annotated exercise cache file failed in saving with error {e}".format(e=e))
return EXERCISES[language]
def get_content_cache(force=False, annotate=False, language=settings.LANGUAGE_CODE):
global CONTENT, CONTENT_FILEPATH
if CONTENT is None:
CONTENT = {}
if CONTENT.get(language) is None:
CONTENT[language] = softload_json(CONTENT_FILEPATH, logger=logging.debug, raises=False)
annotate = True
if annotate:
if settings.DO_NOT_RELOAD_CONTENT_CACHE_AT_STARTUP and not force:
content = softload_json(CONTENT_FILEPATH + "_" + language + ".cache", logger=logging.debug, raises=False)
if content:
CONTENT[language] = content
return CONTENT[language]
# Loop through all content items and put thumbnail urls, content urls,
# and subtitle urls on the content dictionary, and list all languages
# that the content is available in.
for content in CONTENT[language].values():
default_thumbnail = create_thumbnail_url(content.get("id"))
dubmap = i18n.get_id2oklang_map(content.get("id"))
if dubmap:
content_lang = i18n.select_best_available_language(language, available_codes=dubmap.keys()) or ""
if content_lang:
dubbed_id = dubmap.get(content_lang)
format = content.get("format", "")
if is_content_on_disk(dubbed_id, format):
content["available"] = True
thumbnail = create_thumbnail_url(dubbed_id) or default_thumbnail
content["content_urls"] = {
"stream": settings.CONTENT_URL + dubmap.get(content_lang) + "." + format,
"stream_type": "{kind}/{format}".format(kind=content.get("kind", "").lower(), format=format),
"thumbnail": thumbnail,
}
else:
content["available"] = False
else:
content["available"] = False
else:
content["available"] = False
# Get list of subtitle language codes currently available
subtitle_lang_codes = [] if not os.path.exists(i18n.get_srt_path()) else [lc for lc in os.listdir(i18n.get_srt_path()) if os.path.exists(i18n.get_srt_path(lc, content.get("id")))]
# Generate subtitle URLs for any subtitles that do exist for this content item
subtitle_urls = [{
"code": lc,
"url": settings.STATIC_URL + "srt/{code}/subtitles/{id}.srt".format(code=lc, id=content.get("id")),
"name": i18n.get_language_name(lc)
} for lc in subtitle_lang_codes if os.path.exists(i18n.get_srt_path(lc, content.get("id")))]
# Sort all subtitle URLs by language code
content["subtitle_urls"] = sorted(subtitle_urls, key=lambda x: x.get("code", ""))
with i18n.translate_block(content_lang):
content["selected_language"] = content_lang
content["title"] = _(content["title"])
content["description"] = _(content.get("description", "")) if content.get("description") else ""
if settings.DO_NOT_RELOAD_CONTENT_CACHE_AT_STARTUP:
try:
with open(CONTENT_FILEPATH + "_" + language + ".cache", "w") as f:
json.dump(CONTENT[language], f)
except IOError as e:
logging.warn("Annotated content cache file failed in saving with error {e}".format(e=e))
return CONTENT[language]
def get_exercise_cache(force=False, language=settings.LANGUAGE_CODE):
global EXERCISES, EXERCISES_FILEPATH
if EXERCISES is None:
EXERCISES = {}
if EXERCISES.get(language) is None:
if settings.DO_NOT_RELOAD_CONTENT_CACHE_AT_STARTUP and not force:
exercises = softload_json(EXERCISES_FILEPATH + "_" + language + ".cache", logger=logging.debug, raises=False)
if exercises:
EXERCISES[language] = exercises
return EXERCISES[language]
EXERCISES[language] = softload_json(EXERCISES_FILEPATH, logger=logging.debug, raises=False)
exercise_root = os.path.join(settings.KHAN_EXERCISES_DIRPATH, "exercises")
if os.path.exists(exercise_root):
exercise_templates = os.listdir(exercise_root)
else:
exercise_templates = []
assessmentitems = get_assessment_item_cache()
TEMPLATE_FILE_PATH = os.path.join(settings.KHAN_EXERCISES_DIRPATH, "exercises", "%s")
for exercise in EXERCISES[language].values():
exercise_file = exercise["name"] + ".html"
exercise_template = exercise_file
exercise_lang = "en"
if exercise.get("uses_assessment_items", False):
available = False
items = []
for item in exercise.get("all_assessment_items","[]"):
item = json.loads(item)
if assessmentitems.get(item.get("id")):
items.append(item)
available = True
exercise["all_assessment_items"] = items
else:
available = os.path.isfile(TEMPLATE_FILE_PATH % exercise_template)
# Get the language codes for exercise templates that exist
available_langs = set(["en"] + [lang_code for lang_code in exercise_templates if os.path.exists(os.path.join(exercise_root, lang_code, exercise_file))])
# Return the best available exercise template
exercise_lang = i18n.select_best_available_language(language, available_codes=available_langs)
if exercise_lang == "en":
exercise_template = exercise_file
else:
exercise_template = os.path.join(exercise_lang, exercise_file)
with i18n.translate_block(language):
exercise["available"] = available
exercise["lang"] = exercise_lang
exercise["template"] = exercise_template
exercise["title"] = _(exercise.get("title", ""))
exercise["description"] = _(exercise.get("description", "")) if exercise.get("description") else ""
if settings.DO_NOT_RELOAD_CONTENT_CACHE_AT_STARTUP:
try:
with open(EXERCISES_FILEPATH + "_" + language + ".cache", "w") as f:
json.dump(EXERCISES[language], f)
except IOError as e:
logging.warn("Annotated exercise cache file failed in saving with error {e}".format(e=e))
return EXERCISES[language]
def get_content_cache(force=False, annotate=False, language=settings.LANGUAGE_CODE):
global CONTENT, CONTENT_FILEPATH
if CONTENT is None:
CONTENT = {}
if CONTENT.get(language) is None:
CONTENT[language] = softload_json(CONTENT_FILEPATH, logger=logging.debug, raises=False)
annotate = True
if annotate:
if settings.DO_NOT_RELOAD_CONTENT_CACHE_AT_STARTUP and not force:
content = softload_json(CONTENT_FILEPATH + "_" + language + ".cache", logger=logging.debug, raises=False)
if content:
CONTENT[language] = content
return CONTENT[language]
# Loop through all content items and put thumbnail urls, content urls,
# and subtitle urls on the content dictionary, and list all languages
# that the content is available in.
for content in CONTENT[language].values():
default_thumbnail = create_thumbnail_url(content.get("id"))
dubmap = i18n.get_id2oklang_map(content.get("id"))
if dubmap:
content_lang = i18n.select_best_available_language(language, available_codes=dubmap.keys()) or ""
if content_lang:
dubbed_id = dubmap.get(content_lang)
format = content.get("format", "")
if is_content_on_disk(dubbed_id, format):
content["available"] = True
thumbnail = create_thumbnail_url(dubbed_id) or default_thumbnail
content["content_urls"] = {
"stream": settings.CONTENT_URL + dubmap.get(content_lang) + "." + format,
"stream_type": "{kind}/{format}".format(kind=content.get("kind", "").lower(), format=format),
"thumbnail": thumbnail,
}
elif settings.BACKUP_VIDEO_SOURCE:
content["available"] = True
content["content_urls"] = {
"stream": settings.BACKUP_VIDEO_SOURCE.format(youtube_id=dubbed_id, video_format=format),
"stream_type": "{kind}/{format}".format(kind=content.get("kind", "").lower(), format=format),
"thumbnail": settings.BACKUP_VIDEO_SOURCE.format(youtube_id=dubbed_id, video_format="png"),
}
else:
content["available"] = False
else:
content["available"] = False
else:
content["available"] = False
# Get list of subtitle language codes currently available
subtitle_lang_codes = [] if not os.path.exists(i18n.get_srt_path()) else [lc for lc in os.listdir(i18n.get_srt_path()) if os.path.exists(i18n.get_srt_path(lc, content.get("id")))]
# Generate subtitle URLs for any subtitles that do exist for this content item
subtitle_urls = [{
"code": lc,
"url": settings.STATIC_URL + "srt/{code}/subtitles/{id}.srt".format(code=lc, id=content.get("id")),
"name": i18n.get_language_name(lc)
} for lc in subtitle_lang_codes if os.path.exists(i18n.get_srt_path(lc, content.get("id")))]
# Sort all subtitle URLs by language code
content["subtitle_urls"] = sorted(subtitle_urls, key=lambda x: x.get("code", ""))
with i18n.translate_block(content_lang):
content["selected_language"] = content_lang
content["title"] = _(content["title"])
content["description"] = _(content.get("description", "")) if content.get("description") else ""
if settings.DO_NOT_RELOAD_CONTENT_CACHE_AT_STARTUP:
try:
with open(CONTENT_FILEPATH + "_" + language + ".cache", "w") as f:
json.dump(CONTENT[language], f)
except IOError as e:
logging.warn("Annotated content cache file failed in saving with error {e}".format(e=e))
return CONTENT[language]
def get_exercise_cache(force=False, language=settings.LANGUAGE_CODE):
global EXERCISES, EXERCISES_FILEPATH
if EXERCISES is None:
EXERCISES = {}
if EXERCISES.get(language) is None:
if settings.DO_NOT_RELOAD_CONTENT_CACHE_AT_STARTUP and not force:
exercises = softload_json(EXERCISES_FILEPATH + "_" + language + ".cache", logger=logging.debug, raises=False)
if exercises:
EXERCISES[language] = exercises
return EXERCISES[language]
EXERCISES[language] = softload_json(EXERCISES_FILEPATH, logger=logging.debug, raises=False)
exercise_root = os.path.join(settings.KHAN_EXERCISES_DIRPATH, "exercises")
if os.path.exists(exercise_root):
exercise_templates = os.listdir(exercise_root)
else:
exercise_templates = []
assessmentitems = get_assessment_item_cache()
TEMPLATE_FILE_PATH = os.path.join(settings.KHAN_EXERCISES_DIRPATH, "exercises", "%s")
for exercise in EXERCISES[language].values():
exercise_file = exercise["name"] + ".html"
exercise_template = exercise_file
exercise_lang = "en"
if exercise.get("uses_assessment_items", False):
available = False
items = []
for item in exercise.get("all_assessment_items","[]"):
item = json.loads(item)
if assessmentitems.get(item.get("id")):
items.append(item)
available = True
exercise["all_assessment_items"] = items
else:
available = os.path.isfile(TEMPLATE_FILE_PATH % exercise_template)
# Get the language codes for exercise templates that exist
available_langs = set(["en"] + [lang_code for lang_code in exercise_templates if os.path.exists(os.path.join(exercise_root, lang_code, exercise_file))])
# Return the best available exercise template
exercise_lang = i18n.select_best_available_language(language, available_codes=available_langs)
if exercise_lang == "en":
exercise_template = exercise_file
else:
exercise_template = os.path.join(exercise_lang, exercise_file)
with i18n.translate_block(language):
exercise["available"] = available
exercise["lang"] = exercise_lang
exercise["template"] = exercise_template
exercise["title"] = _(exercise.get("title", ""))
exercise["description"] = _(exercise.get("description", "")) if exercise.get("description") else ""
if settings.DO_NOT_RELOAD_CONTENT_CACHE_AT_STARTUP:
try:
with open(EXERCISES_FILEPATH + "_" + language + ".cache", "w") as f:
json.dump(EXERCISES[language], f)
except IOError as e:
logging.warn("Annotated exercise cache file failed in saving with error {e}".format(e=e))
return EXERCISES[language]
