o ii @sdZddlZddlZddlZddlZddlZddlZddlmZm Z dddZ ddZ Gd d d e eefZ zej Z Wn eyGd Z Ynwd d ZddZdS)zio-related utilitiesN)AnyDictstdoutcCsF|dvsJtt|}z|j}Wn ty|YSwtd|S)uGet a wrapper to write unicode to stdout/stderr as UTF-8. This ignores environment variables and default encodings, to reliably write unicode to stdout or stderr. :: unicode_std_stream().write(u'ł@e¶ŧ←') )rstderrutf-8)getattrsysbufferAttributeErrorcodecs getwriterstreamstream_brM/var/www/edux/Edux_v2/venv/lib/python3.10/site-packages/nbconvert/utils/io.pyunicode_std_streams   rcCs6tj}z|j}Wn ty|YSwtd|S)zGet a wrapper to read unicode from stdin as UTF-8. This ignores environment variables and default encodings, to reliably read unicode from stdin. :: totreat = unicode_stdin_stream().read() r)rstdinr r r getreaderr rrrunicode_stdin_stream%s   rc@seZdZdZddZdS)FormatSafeDictzFormat a dictionary safely.cCs d|dS)zHandle missing value.{}r)selfkeyrrr __missing__:s zFormatSafeDict.__missing__N)__name__ __module__ __qualname____doc__rrrrrr7s ric CsRttdstSd}z t||W|Sty(}z |j}WYd}~|Sd}~ww)zHard links ``src`` to ``dst``, returning 0 or errno. Note that the special errno ``ENOLINK`` will be returned if ``os.link`` isn't supported by the operating system. linkrN)hasattrosENOLINKr OSErrorerrno)srcdst link_errnoerrrr Es r c Cstj|rtj|tj|}t||}|tjkr]t|j t|j kr)dS|dt ddd}zt ||Wnt yTzt|WtySYwwt||dS|dkrit||dSdS)a+Attempts to hardlink ``src`` to ``dst``, copying if the link fails. Attempts to maintain the semantics of ``shutil.copy``. Because ``os.link`` does not overwrite files, a unique temporary file will be used if the target already exists, then that file will be moved into place. Nz-temp-i04Xr)r"pathisdirjoinbasenamer r%EEXISTstatst_inorandomrandint link_or_copy BaseExceptionremover$renameshutilcopy)r&r'r(new_dstrrrr5Vs,      r5)r)rr r%r"r3r9rtypingrrrrrr#r r r5rrrrs$