[Fwd: [Tutor] import calendar not working]
Michael Perry
vball@erols.com
Tue, 26 Oct 1999 19:24:40 -0400
This is a multi-part message in MIME format.
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I was under the (apparently mistaken) impression that calendar.py was
part of the standard release. I did not develope it. If it is not part
of the standard release it may have come with HTMLgen, although HTMLgen
seems to install itself in pythton1.5/site-packages. Comparing the
dates it looks like that module was installed the same time as
everything else.
I've attached a script where I've copied the file to /tmp, run it from
my current dir, then run it from /tmp. It works in /tmp but not the
current dir.
It seems like its my environment but I don't see where. I've attached
calendar.py also.
The program runs fine from my home directory
[mike@spin python1.5]$ ls -ld c*
-rw-r--r-- 1 root root 4442 Mar 21 1999 calendar.py
-rw-r--r-- 1 root root 6033 Mar 21 1999 calendar.pyc
-rw-r--r-- 1 root root 5658 Mar 21 1999 calendar.pyo
-rwxr-xr-x 1 root root 45830 Mar 21 1999 cgi.py*
-rw-r--r-- 1 root root 52720 Mar 21 1999 cgi.pyc
-rw-r--r-- 1 root root 50758 Mar 21 1999 cgi.pyo
-rw-r--r-- 1 root root 2090 Mar 21 1999 cmd.py
Here's the version information:
Python 1.5.1 (#1, Mar 21 1999, 22:49:36) [GCC egcs-2.91.66 19990314/Li
on linux-i386
[mike@spin mike]$ more cal.py
#!/usr/bin/python
print "Content-type: text/html" # HTML is following
print # blank line, end of headers
import calendar
import HTMLcalendar
calendar.prmonth(1999, 10)
[mike@spin mike]$ ./cal.py
Content-type: text/html
October 1999
Mo Tu We Th Fr Sa Su
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
[mike@spin mike]$
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Date: Wed, 27 Oct 1999 00:01:38 +0200 (IST)
From: Moshe Zadka <moshez@math.huji.ac.il>
X-Sender: moshez@sundial
Reply-To: Moshe Zadka <mzadka@geocities.com>
To: Michael Perry <vball@erols.com>
Subject: Re: [Tutor] import calendar not working
In-Reply-To: <3815DFAD.AE2CBED9@erols.com>
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On Tue, 26 Oct 1999, Michael Perry wrote:
> The filename is "cal.py"
> #!/usr/bin/python
>
> print "Content-type: text/html" # HTML is following
> print # blank line, end of headers
>
> import sys
> # import calendar
>
> print sys.path
> # calendar.prmonth(1999, 10)
>
> $ ./cal.py
> Content-type: text/html
>
> ['.', '/usr/lib/python1.5/', '/usr/lib/python1.5/test',
> '/usr/lib/python1.5/plat-linux-i386', '/usr/lib/python1.5/lib-tk',
> '/usr/lib/python1.5/lib-dynload', '/usr/lib/python1.5/site-packages',
> '/usr/lib/python1.5/site-packages/HTMLgen',
> '/usr/lib/python1.5/site-packages/NumPy',
> '/usr/lib/python1.5/site-packages/PIL',
> '/usr/lib/python1.5/site-packages/idle']
> [mike@spin cgi-bin]$
>
>
> And this does not work?:
>
> #!/usr/bin/python
>
> print "Content-type: text/html" # HTML is following
> print # blank line, end of headers
>
> import sys
> import calendar
>
> print sys.path
>
>
> $./cal.py
> Content-type: text/html
>
> Traceback (innermost last):
> File "./cal.py", line 8, in ?
> import calendar
> File "/home/httpd/cgi-bin/calendar.py", line 15, in ?
> import HTMLcalendar
> File "/usr/lib/python1.5/site-packages/HTMLgen/HTMLcalendar.py", line
> 25, in ?
> from calendar import day_name, month_name, mdays, weekday
> ImportError: cannot import name day_name
The trouble seem to be with some non-standard Python module "calendar".
It's hard to debug code you don't show us
--
Moshe Zadka <mzadka@geocities.com>.
INTERNET: Learn what you know.
Share what you don't.
--------------6029D8F58CB429C034E37EFD
Content-Type: text/plain; charset=us-ascii;
name="calprob"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
filename="calprob"
Script started on Tue Oct 26 19:12:39 1999
[httpd@spin cgi-bin]$ pwd
/home/httpd/cgi-bin
[httpd@spin cgi-bin]$ cp cal.py /tmp
[httpd@spin cgi-bin]$ cat cal.py
#!/usr/bin/python
print "Content-type: text/html" # HTML is following
print # blank line, end of headers
import calendar
import HTMLgen
calendar.prmonth(1999, 10)
[httpd@spin cgi-bin]$ ./cal.py
Content-type: text/html
Traceback (innermost last):
File "./cal.py", line 7, in ?
import calendar
File "/home/httpd/cgi-bin/calendar.py", line 15, in ?
import HTMLcalendar
File "/usr/lib/python1.5/site-packages/HTMLgen/HTMLcalendar.py", line 25, in ?
from calendar import day_name, month_name, mdays, weekday
ImportError: cannot import name day_name
[httpd@spin cgi-bin]$ /tmp/cal.py
Content-type: text/html
October 1999
Mo Tu We Th Fr Sa Su
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
[httpd@spin cgi-bin]$ exit
Script done on Tue Oct 26 19:13:27 1999
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Content-Type: text/plain; charset=us-ascii;
name="calendar.py"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
filename="calendar.py"
###############################
# Calendar printing functions #
###############################
# Revision 2: uses funtions from built-in time module
# Import functions and variables from time module
from time import gmtime, localtime, mktime, asctime, ctime
# Exception raised for bad input (with string parameter for details)
error = 'calendar.error'
# Note when comparing these calendars to the ones printed by cal(1):
# My calendars have Monday as the first day of the week, and Sunday as
# the last! (I believe this is the European convention.)
# Constants for months referenced later
January = 1
February = 2
# Number of days per month (except for February in leap years)
mdays = [0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
# Full and abbreviated names of weekdays
day_name = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', \
'Friday', 'Saturday', 'Sunday']
day_abbr = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
# Full and abbreviated names of months (1-based arrays!!!)
month_name = ['', 'January', 'February', 'March', 'April', \
'May', 'June', 'July', 'August', \
'September', 'October', 'November', 'December']
month_abbr = [' ', 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', \
'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
# Return 1 for leap years, 0 for non-leap years
def isleap(year):
return year % 4 == 0 and (year % 100 <> 0 or year % 400 == 0)
# Return number of leap years in range [y1, y2)
# Assume y1 <= y2 and no funny (non-leap century) years
def leapdays(y1, y2):
return (y2+3)/4 - (y1+3)/4
# Return weekday (0-6 ~ Mon-Sun) for year (1970-...), month (1-12), day (1-31)
def weekday(year, month, day):
secs = mktime((year, month, day, 0, 0, 0, 0, 0, 0))
tuple = localtime(secs)
return tuple[6]
# Return weekday (0-6 ~ Mon-Sun) and number of days (28-31) for year, month
def monthrange(year, month):
if not 1 <= month <= 12: raise ValueError, 'bad month number'
day1 = weekday(year, month, 1)
ndays = mdays[month] + (month == February and isleap(year))
return day1, ndays
# Return a matrix representing a month's calendar
# Each row represents a week; days outside this month are zero
def _monthcalendar(year, month):
day1, ndays = monthrange(year, month)
rows = []
r7 = range(7)
day = 1 - day1
while day <= ndays:
row = [0, 0, 0, 0, 0, 0, 0]
for i in r7:
if 1 <= day <= ndays: row[i] = day
day = day + 1
rows.append(row)
return rows
# Caching interface to _monthcalendar
_mc_cache = {}
def monthcalendar(year, month):
key = (year, month)
if _mc_cache.has_key(key):
return _mc_cache[key]
else:
_mc_cache[key] = ret = _monthcalendar(year, month)
return ret
# Center a string in a field
def _center(str, width):
n = width - len(str)
if n <= 0: return str
return ' '*((n+1)/2) + str + ' '*((n)/2)
# XXX The following code knows that print separates items with space!
# Print a single week (no newline)
def prweek(week, width):
for day in week:
if day == 0: s = ''
else: s = `day`
print _center(s, width),
# Return a header for a week
def weekheader(width):
str = ''
if width >= 9: names = day_name
else: names = day_abbr
for i in range(7):
if str: str = str + ' '
str = str + _center(names[i%7][:width], width)
return str
# Print a month's calendar
def prmonth(year, month, w = 0, l = 0):
w = max(2, w)
l = max(1, l)
print _center(month_name[month] + ' ' + `year`, 7*(w+1) - 1),
print '\n'*l,
print weekheader(w),
print '\n'*l,
for week in monthcalendar(year, month):
prweek(week, w)
print '\n'*l,
# Spacing of month columns
_colwidth = 7*3 - 1 # Amount printed by prweek()
_spacing = ' '*4 # Spaces between columns
# 3-column formatting for year calendars
def format3c(a, b, c):
print _center(a, _colwidth),
print _spacing,
print _center(b, _colwidth),
print _spacing,
print _center(c, _colwidth)
# Print a year's calendar
def prcal(year):
header = weekheader(2)
format3c('', `year`, '')
for q in range(January, January+12, 3):
print
format3c(month_name[q], month_name[q+1], month_name[q+2])
format3c(header, header, header)
data = []
height = 0
for month in range(q, q+3):
cal = monthcalendar(year, month)
if len(cal) > height: height = len(cal)
data.append(cal)
for i in range(height):
for cal in data:
if i >= len(cal):
print ' '*_colwidth,
else:
prweek(cal[i], 2)
print _spacing,
print
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